Cb750 coil upgrade

Cb750 coil upgrade. 1965 CA77 Dream- Needs a Full Teardown, but Complete All advice I give is CB750 New member. During the inspections on the ignition system on this Classic Honda 4 cylinder motorcycle we found so many issues, including, but by no means limited to, ope 1981 dohc build thread cb750 dohc cognito dohc gsxr resto P. I've checked all the fuel system (all clear) and theres suction on both carbs. It has a pulse generator connected to the crank. The bike in the video is a The dyna coils do have a reputation for going bad. 4kohms (perfect) and the wires are all good. C) 1976 - 1978 at the best online prices at eBay! Free delivery for many products! 2 Pcs Ignition Coils and Caps For Honda CB650 1979-1982 Goldwing 1100 1980-1983 Goldwing 1200 1984-1987 CB750 1979-1982 CB900 1980-1982 Nighthawk 750 CB750 1982-1983 30500-422-003 30500-422-013 dummy Ignition Coil Pack and Spark Plug CAP for HONDA CBR600F2 CBR600F3 CBR600SJR 1991-1998 30510-KT7-023 CB750 Ignition Coil Test Problems. DOHC coils are pretty weak. Free shipping on many items | Browse your favorite brands | affordable prices. I installed a 4-1 delkevic megaphone exhaust, Murray's Carbs dual vm34 carb kit, Accel super coil ignition system (Coil, and wires), new Dr8eix plugs (no resistor in boots/wires, plugs have 5kOhm resistor), and a new wiring harness. Should I use 3 OHM or 5 OHM coils? What is the difference between 3 OHM and 5 OHM? I remember reading somewhere that the 3 OHM My stock '81 cb750 coils were on their way out, so I replaced them with a pair of CBR f2 coils in hopes of fixing the problem and giving my plugs a little more juice. K. Master; Posts: 2,081; CB750 Upgraded Charging System « on: April 27, 2018, 01:21:15 pm » Hey Guys, Long time No Post. 2 ohms measured between green and white wires on field coil, no Replacement ignition coil for points style ignitions on Honda 69-78 CB750 models. It melted Hi, first post,my bike has a good spark on cylinder 1 but very weak spark at cylinder 4 ( same coil ) also cylinder 2 good spark cylinder 3 very weak spark again same coil , any ideas would be appreciated. All the diagrams I have seen just have one wire coming from the ignition output on the m unit to the coils. Top Rated Plus. You have to probe for where the connection is then yank wire and drill up the hole to free the old wire then replace with new soldered onto coil leads and epoxy it all back together. to/2QlPCnVFollow along on Instagram https://www. 8%. My only MUST is keeping a spoked front wheel. Idles great ,starts with out the choke. N. com FREE DELIVERY possible on eligible purchases Delivering to Lebanon 66952 Update location Buy Set of 2 Ignition Coil & Caps For Honda CB1000 CB900 CB750 CB650 1979-1983 Goldwing 1100 1200 GL 1100 1200 Nighthawk 650 750: Ignition Coils - Amazon. 8 #1474. This is the same ignition used by top racers over the past 2 decades. Apr 20, 2023 #1 Good morning! I have a 1980 CB750F, my buddy has a CB1100F and says that I can swap the ignition coils and wires from an F2 for an "easy plug and play upgrade. The basics: 1979 CB750K M-Unit Blue Revival Cycles Find many great new & used options and get the best deals for Ignition Coil For Honda CB 750 K6/K7 (S. The spring must compress approximately 16. I barely get any spark. Search titles only By: Search Advanced search New posts. It has Now going to test the field coil and stator. The Dyna S 2 Brand New High Performance Ignition Coils to fit: Honda CB 750 K (1969-1978). im wondering who's tried cycle x's kit, how it work etc or where to get a new electronic ignit. Keeping most of the factory plugs (for easy swapping of parts) it was a pretty easy Author Topic: Suspension upgrade recommendations? CB750 (Read 10816 times) 0 Members and 1 Guest are viewing this topic. $35. Many of these Honda cb models from 70,s era lack the necessary out-put for any Get out your Multimeter and check your charging system @ 5K rpm as per the Factory Manual if its within spec you accomplished your goal! if its not in spec then you Honda CB750 K2 - Primary ignition circuit upgrade with new relay Ep. what can i upgrade the stock coils with, and will it work ok with the stock points? i have heard that some ppl go with the GL1000 coils, how are they different? used and cost effective ideas are best at this point Thanks RKS. Veloandy; Aug 30, 2018; The SOHC Garage Stator for Honda CB750 CB900 CB1000 | OEM 31120-MG5-005. Cylinders 1&4 seem to be cold after running. 37. jwing CB750 Member. Cb750 Guru Hi to you and thanks for all your interesting threads on repairing motorcycles . Select the department you want 2 Pcs Ignition Coil For Honda CB650 CB750 1979-1982 CB900 1980-1982 CB1000 1983 Goldwing 1100 1980-1983 Goldwing 1200 1984-1987 Nighthawk 650 1982 Nighthawk 750 1982-1983 30500-422-003 30500-422-013. Bikes came originally with independent voltage regulators and rectifiers which we upgrade with a modern solid-state combination unit. CB750K - 1969-1978. C $96. This is to be used on a stock 1972 K1 CB750. So I realized 1&4 come off the same coil, checked those with a multimeter (may have done it wrong) and they seem to be fine. Primary you measure one coil small wire to the other (coil + to coil -). Thread starter loxley007; Start date Oct 8, 2023; loxley007 CB750 Addict. Are they single fire, or multi fire? In other words, are there wasted sparks as a coil would fire on an empty cylinder? Just curious is all. Dyna / Dynatek ignition kit with Magna coils for the SOHC Honda CB750 from 1969-1978. 4 4. Plug gaps are fine. We are your supplier for Honda motorcycle parts, specializing in the Honda CB750, also including the Honda CB350 - CB1100 and more. B. 1976 cb750. Hey guys, this is a 1978 cb750k. I replaced all 4 spark plugs. I’m trying to diagnose a 0. 1st of many questions is. About 30sec later I heard a POF! and smoke squirted out from one of the coils. If you have a weak spark on your Honda CB750 then the coils could be the culprit and it's a good idea to get some new coils on the bike. O. I'm looking for a upgrade for my ignition coil. Let me know if you have any questions. 2 Sets Of Brand new 12V CDI ignition coil to fit: Honda CB 750 Custom (D. Messages 26 Reaction score 2 Points 3 Location Pennsylvania. Jun Hi, I’ve replaced my original coils as they were badly split. Two primaries and two secondaries on each coil. Dyna S Ignition: https://amzn. 5%. Thread starter neilc; Start date Dec 21, 2012; Tags sohc N. The original article Honda 750 Update - Taking it into the 80's by Joe Minton Published in Motorcyclist Dynatek Coils Coil 3 ohm Dual output Ignition DC1-1 Honda cb 500 550 750 gl1000 (For: Honda CB750) In Stock & Ready To Ship, Free 2-3 Day Airmail Shipping Brand New · Dynatek Find many great new & used options and get the best deals for HONDA PULSE GENERATOR PICK UP COILS CB900C CB900 CB750 CB1100F at the best online prices at eBay! Free shipping for many products! Technical Upgrade: Our model used to replace Coil Coils Caps and Wire for Honda CB650 is manufactured with brand-new high-quality materials and technology, Ignition Coil 2 Pcs & Caps For Honda CB650 CB750 CB900 CB1000 1979-1983 Goldwing 1100 1200 GL 1100 1200 Nighthawk 650 750. I'm pretty sure it's because I mostly do around town riding and don't I’m doing a complete rewire of my 1978 cb750 and I just wanted a little confirmation on wiring my alternator. Caferacer1204 CB750 Member. When bolting the stator in, always use a locking compound. Tested plug boots and wires they are fine. Everything ohms out correctly, yet the white pickup coil wire has continuity to ground. I would write them out but it is a lot of typing and honestly you should have a manual for specs and such. It is very possible I don't understand power to the coils but it seems to me a pulse from the ignition is run to the coils, gets jacked up in voltage then sent to the plugs all in time. I found some ignition issues with my 81 cb750 and as Re: any one know an coil upgrade for the cb750. CB750 coils fire twice per revolution though so that tool would read 1/4 the actual RPM. Tech. Messages 3 Reaction score 1 Points 3 Location Columbus Ohio. 5 out of . Not sure thats stock but seems odd. Enter the October CB750 Supply gift certificate giveaway! It's easy Click here, post something, and you're but not 2 and 3. Currently #115 main jets - up 3 on pilot jets. Make sure your coils are connected to the correct cylinders. Honda CB 750 F-F3 SOHC (1975-1978). Honda CB750 Ignition Coil - Stock type for contact point ignitions. Do you know of any coils I can purchase that will hold up and not wreak havoc other places in the system? Was thinking the dyna 3 ohm but I've read some bad stuff on here. Test results from each coil: Not stock brandless coils currently on bike - Primary Test - 4. Followed the ignition coil harness to the spark units/CDI boxes. It has nateweisiger02; Thread; May 9, He uses it on all of his Harleys and all of the CBs that he has built in the past. CB750 New member. Essentially, it's very similar, electrically, to our 70-79 alternators, Many of these Honda cb models from 70,s era lack the necessary out-put for any upgrades in ignitions and such. Some interesting tips here on updating the Honda CB750. No enough dwell (too wide a gap) on one point set will kill spark too. The bike isn't charging, at the battery I am getting 12 volts, turning the screw did not change the voltage out to the field coil. Nov 18, 2022 #1 Hello folks, new to forums and new to CB's! '01 GSXR 100 rear swing arm- adding lower shock mounts to run dual coil overs Cognito battery box Dime City rear loop Drilling out Find many great new & used options and get the best deals for HONDA PULSE GENERATOR PICK UP COILS CB900C CB900 CB750 CB1100F at the best online prices at eBay! Free shipping for many products! Connect meter between leads on first coil (#1, #4), turn ignition switch to 'start' position. The parts for this project should not cost much more than $35, (not including Find great deals on eBay for Cb 750 Coils. I installed a M-Unit Blue on my CB750 KZ 1979 last winter. com FREE DELIVERY possible on eligible purchases Delivering to Lebanon 66952 Update location Hi all, I am new to the motorcycle world, and I am building a 1978 cb750f cafe racer. No change. Connect the meter to leads on 2nd coil. « Reply #2 on: January 03, 2010, 05:11:45 pm ». Same thing with the blue side of the other coil. 23 sold. Also cleaned and rewired the starter switch as was dodgy. Now I have two questions which are: Do I need to upgrade to a magneto in order for this to be kickstart only? Here are some of the most notable changes over the lifetime of the CB750: DOHC - CB750K From 1969 to 1978, Honda did little to upgrade the SOHC models but in 1979, Honda again changed the game by introducing a DOHC engine to the CB750 lineup that brought more power, smoothness, and performance to the game. Carbs have been cleaned and have fuel both in bowls and the intakes. The coil wires are 21" long. I spoke with Murray from Murray's Carbs who recommended an accel kit if I wanted to spend a bit of money so I bought one and received the 14403 kit with 3 ohm coils. SebastianP CB750 Member. If all is well you need to test the pick up coils (electronic points) red plug left side of bike near the regulator test for continuity and resistance as per manual. iron_worker. ) (1982-1983). SPONSORED. Started to look into the wiring and both the field coil and the stator bench tested ok. Honda New CB750 Coil Set CB 750 K F A CB750F CB750A a 30500-300-013 (13) 100% agree - Delivering to Lebanon 66952 Update location Automotive Parts & Accessories. The magneto/rotor is measuring 1-2 OHMs. from China. (You already did that, right ? Leave the alternator connector coupled, and insert an unwound large paper clip into the connector at the WHITE wire location. In this video, we talk about upgrading the charging system on the Honda CB175, CB200, CB350, CB360, and CB450 family of bikes with the single-phase permanent magnet style stator coil. Riding around the suburbs or out on the highway where you can keep moving it works good, however, when it gets too hot it can be a real pain in the butt. I have cut the wire back a couple of times hoping to get a good connection, but the insulation keeps crumbling with each new cut. Messages 17 Reaction score 0 Points 1 Location cheyenne, wy. I recently purchased a new reg/rec and hit a road block wiring. If you do not get a reading, or if it flickers in and out, then there is a broken wire and the coil is bad. Hi I am new a few years ago (5) I bought a Pamco ultimate set (includes coils) I have installed it in a 71 I am building The plugs keep fouling checked all Forums. There is no permanent magnet in the stator of this bike, there is a stationary electromagnet that produces a magnetic field that essentialy energizes the rotor which is just solid steel that rotates in the stator. 5 ohms One leftover stock coil - Stamped - TEC FL703 - 12V 46C Primary Test - 5. Dynatek Coils Coil 3 ohm Dual output Ignition DC1-1 Honda cb 500 550 750 gl1000 (For: Honda CB750) Opens in a new window or tab In Stock & Ready To Ship, Free 2-3 Day Airmail Shipping This LED Light Bulb Upgrade Kit replaces the Halogen Bulbs on your vintage Honda CB500T, CB550K, CB550F, CB750 motorcycle. The original has a cloth wrap on the coil and the other has the resin on the wires. New coil may be no good as well. instagram. Honda CB 750 K (D. Honda CB 750 F (D. 84. I've 'rebuilt' a coil/wire Ok, pulled the coils, checked primary and secondary winding resistance comparing to the old set, checked leads. See Kohler Parts Bulletin No. Replaced all spark plugs, wires, and both ignition coils. It could be a bad coil, I do not know if it goes 1-3 and 1-4 or 1-2 and 3-4. Used 1/2 of the original baffle into the new pipe (single pin holds the baffle for quick removal). For Honda CB750 Coil Set NIGHTHAWK CB 750 Ignition Coils & Spark Plug Caps 91-03. 8V. She fired up great but after ± 100km it drained the battery. Massive selection from top brands on eBay. On the box however, in bold letters it states (NON-CDI). How to Bypass the Regulator - However, before bypassing the regulator, make sure the field coil (rotor) isn't shorted. Jun 30, 2016 #1 I know there's a method of testing the coils without the multimeter but I've heard that there many components that cause an inaccurate diagnosis. I have no spark at any of the four plugs. Thanks in advance! Reply. The Honda could are a lesser expensive upgrade to the factory Yamaha coils, in that the wires can be replaced without purchasing new coils or major Honda CB 750 k7 here. neil young. lol I think my bike just ate another battery. Messages 4 Reaction score 0 Points 1 Location Chicago. 79-83 CB750 Service Manual in PDF Format. I’m rebuilding an abandoned 1980 CB750 Custom and I got some questions around the voltage at the ignition coils (this is my fourth bike rebuild). Tytrconic Electronic ignition for cb550f cb750f upgrade. I have 3 wires coming out of the coil. We do our best to cancel orders upon request before our automated system allocates regional inventory. Bosch coils are also okay but have been known to fail. com/classicoctane/Become a pat Z-OFFROAD Upgrade 7 Inch Motorcycle LED Headlight w/DRL White Halo DOT Kit Compatible with Harley Davidson Street Glide Road King Special Electra Glide Ultra Classic Fat Boy Heritage Softail https://a. Update on the '78 CB750A project. C $317. Not impossible. The engine felt a bit tired and "blob-blob-blob":y. I even got a different pulse gen and put it in still the same 2+3 won't light a timing lite. ) (1979-1983). Aug 4, 2018 Topic: Suspension upgrade recommendations? CB750 CB750 « on: June 23, 2013, 07:53:54 pm » My 78 CB 750 feels pretty tired in the suspension department. Search. Some of the lower level coils do not have screw on plug wires, the wires are permanently molded ('hardwired') into the coil body. Select the department you Ignition Coils; Ignition Points and Condensers; Ignition Switches; Relays; Spark Plugs. (You already did that, right? ) Leave the alternator connector coupled, and insert an unwound large paper clip into the connector at the WHITE wire location. The DOHC Garage (1979-1983) . neilc CB750 Member. from United States. com FREE DELIVERY possible on eligible purchases Tested coil resistance, swapped them to see if it would follow one or the other, nothing they're fine. So, tracing back, what should I be looking at? Other than more powerful coils the DOHC already has what the SOHCers upgrade up to get. They are Hitachi coils ( same manufacture used by Yamaha) and have removable plug wires. Delivering to Lebanon 66952 Update location Automotive Parts & Accessories. I have searched the Dyna / Dynatek ignition kit with Magna coils for the SOHC Honda CB750 from 1969-1978. I've exhausted the internet and haven't been able to find a forum thread or wiring diagram that has gotten far enough to break down what I'm looking for. 8Ohm - stator coils make no contact to ground - rectifier diodes are ok - field coil 7. Just bought a 1979 CB 750 F. Reactions: SenseAmidMadness, 750_cafe and mrtwowheel. Oct 24, 2016 Replaced all spark plugs, wires, and both ignition coils. 2 Magna High Output Coils. Share: Compatibility: 1971-1975 Honda CB750. That sends signal each cdi box which then sends signal to each coil and then to the plugs. I've been trying to download the cb750 manual but only partially downloads then stops, any suggestions or can someone email a pdf to me please. This rotor is a high quality OEM style replacement for Honda field coil rotors. Is there any other test i This is only true for the CDI models (twins from 1978 and on through the 80s). Apr 26, 2023 #2 I keep racking my brain, so If its "close" to what CB750 wants then I will just get the new one. Jul 15, 2018 #1 Hi, first post,my bike has a good spark on cylinder 1 but very weak spark at cylinder 4 ( same coil ) also cylinder 2 good spark cylinder 3 very weak spark again same coil , any ideas would be appreciated. This is the text. 5 volts, then drops to 0 within 3 seconds. I have it 95% done but can not seem to get spark. Rebuilt the carbs, New fully charged battery and bypassed the fuel tank with a aux hanging fuel bottle for the first start. Certainly not a scientific approach . Measuring all wrong there. unit. Honda CB 750 F (1975-1978). 2 out of 5 stars . I seem to be having ignition problems that are preventing I have a 1976 Honda CB750 K6 that is my first true rebuild. Last edited: May 28, 2016. Carbs vacuum synced, they were a bit out. (measured from the center of each hole) Low tension wires: 8" long - 1 male and 1 female bullet connector (power goes to the black/white line male terminal. Post reply I have swapped out the coils. Dec 21, 2012 #1 while 1997 Valkyrie- Light Cutomization, but Too Busy Riding 1980 KZ1300- Bike's Haunted 1976 GL1000 (Yellow)- Behaving Itself Rather Nicely 1974 Velosolex 3800- Better Than Walking 1972 CB750- Learning The Joys of 4 Cable Carbs 1969 CT90- The Most Fun You Can Have on 90ccs. Replaced pulse generator. Connect with us on social media for the latest updates and promotions: Facebook, Instagram Unit Type: & should be used as such. Mounting points measure 100mm center to center. You'll also need a cam cover and coil harness. Advice On a 79 CB750 That Just Won't Start - UPDATE, the bike STARTED! Chipperf; Jun 15, 2023; The DOHC Garage (1979-1983) Replies 10 Views 1K. Thread starter Loose alternator coil. Tripps. Our inventory is continually growing with genuine OEM and new OEM referenced replacement parts. What's new . The were made by several OEM manufacturer's, the latest part number is 12138616153 which is a Delphi coil and is also fitted to the current turbo engines including S55. Thanks for the reply. Flip them and see if problem moves. 6 ohms measured between phases (3 yellow wires) for stator coil, no short on case Passed: 7. Honda CB 750 SC Delivering to Lebanon 66952 Update location All. tytronic48 (139) 96. What's new Search. We do not sell any used parts. dirtwagon CB750 Member. aceshadow; Aug 13, 2021; The SOHC Garage (1969-1978) Replies 11 Views 3K. com. The stator or the field coil can go bad and both are mounted in the alt. Shop by category Update your location. It's an inductive coil type while CDI is not. I own a 1980 CB750 that has had some charging system problems. May 10, 2024 #1 Replacing the coils and wires on my 79 750F and I got to wondering. 750_cafe Update your shipping location. I have a 1980 cb750 and am in the middle of a m unit install. Electrical Engineer Evan from RM Stator shows you how to install a new pair of ignition coils on your DOHC Honda CB. I ran the three yellow wires to my reg/rec but the are two other wires a green and white. I replaced the spark plugs, no change. After the install, all four plugs spark really well, but it won't start thus indicating a timing issue (it ran fine before, carbs were rebuilt so I know it's not a fuel or a What Havoc said Also, if you get a new starter solenoid from Honda it is about half the size of the original. C. The winding coil needs to be pretty much locked to the outside casting and to itself internally. I believe it is all original parts. The spark plug cap just won't stay on the wire, and the wire is pretty short now. ) (1979-1981). Also, the insulation in the wire from the coli to the spark plug cap on 4 keeps crumbling. sks72107 CB750 New member. - OEM Ref. I tested power to the coils, each coil has power. Or I'm having troubles figuring out exactly how to wire up the ignition on my 79' cb750k. 73. On waste spark the secondary does not Any way, he had purchased "OEM Style" coils from Vintage CB750. Mogo. CB750 Guru. Get the best deals on Motorcycle Ignition Coils for 1972 Honda CB750 when you shop the largest online selection at eBay. Search forums. 8Ohm (between the white and green wire) Ignition coil conversion kit used on some CH740, CH750, CV740, CV750 engines with previous coils 24 584 52-S, 24 584 63-S, 24 584 89-S, 24 584 31-S, 24 584 53-S, 24 584 64-S, 24 584 90-S & 24 584 39-S ; Email us your engine's spec number if you do not know your part number. Top Rated Seller Top Rated Seller jtmarks77 (40,539) 99. Thread starter Jrperida; Start date Jun 30, 2016; Jrperida New Member. Although the battery just had 12v even when the bike was fired up. I checked the bowls, and they do have fuel. Coils are usually replaced in sets so get that second one. The Dyna S Ignition System is a complete self-contained electronic ignition system built with the latest state-of-the-art engineering. Messages 3,476 Reaction score 54 Points 36 Location Fort Worth TX. 259 to help determine the correct Just before coil bind the original spring reads 30lbs, the replacement only 20. Sellers with highest buyer ratings; Returns, money back; Ships in a business day with tracking; Learn More Top Rated Plus. When sitting on the bike the left coil is for cylinders 1 and 4 which contains the blue wire that goes to the points for cylinders 1-4. Messages 23 Reaction score 0 Points 1 Location mass. 2X Ignition Update your shipping location. If all is well you need to test the pick up coils (electronic points) red plug left side of bike near the regulator test for continuity and resistance as There is a hack to cut into coils and replace wire where it terminates. If not and experience with using the stock on newer solid wire? 1980 CB750 I have two cold cylinders, 2&4. Old ones are also famous for working fine when cold then failing when they get hot and they get pretty warm stuffed under the tank right over the engine. S. Messages 25 Reaction score 14 Points 3 Location Galloway, New Jersey. ) (1980-1982). From reading forums, it seems that most people are using the Pamco ignitions. Fortunately, this is a pretty easy and Electronic ignition kit for the Honda SOHC CB750 from 1969 to 1978. I have over 20 early Honda scrambler’s, which are much easier to diagnose. Opens in a new window or tab. 1978 750 - GSXR Fork Swap Geometry Compensation. I am in the process of rewiring, and I want it to be kick start only. 2 ohms measured between green and white wires on field coil, no I disconnected the yellow positive side of one of the coils, hoked up a test light with a 3 way pigtail to that coil connector, reconnected the yellow lead to the pigtail, the 3rd line to my test light and grounded the test light. 4 1980 cb 750 tuning. They will show you how to rebuild a Honda CB750 four, CB550 four, and CB400 four engine with some common upgrades and tricks. 88mm, the kit spring at 17. Great deals. Either way, I found this (pic attached) on the web. I run it on my 77' F2 and I have some problems with it when the bike gets hot. I tested the voltage going to the coil and only getting 8 or so volts. I’m having difficulty in tightening the new ones fully. Members. I I may have a bad coil (or just caps), and a guy at a local shop told me to try plugging plugs 1/4 into 2/3 and vise versa to check. But I run them and dont have a problem. Shop Motorcycle Ignition Coils for 1979 Honda CB750L with eBay Guaranteed Fit. I know this is a dated system for charging, and when it does crap out I would love to replace it with something that will last. 1. 15% Upgrade Spring Kit. Bad regulator? Thanks . Shop with confidence. The SOHC Garage (1969-1978). . I've also checked both carbs and nothing seems to be wrong. The ad they show is highly inaccurate, at This project is an ignition module design to replace the stock unit for a 1980 Honda CB 750 C motorcycle using aftermarket GM ignition coils commonly found on Chevy Cavaliers and many other GM cars instead of the stock coils. 82 shipping. There are no black and white wires on the coils, and the black and white wires (kill switch) original to the bike were replaced by the start/kill button the goes into the start input side of the m. I would like to have it so, that electronics could be turned on with key or bluetooth. cttrail90 CB750 Member. Messages 1 Reaction score 0 Points 1 Location Helsinki. Media. I can swap both spark ignitors TI . Run a jumper wire from the paper clip to the battery's NEGATIVE terminal. 4 is wet but not firing. 9%. Thread starter 750_cafe; Start date Apr 15, 2024; Tags Are your coils hooked up to the correct cylinders? I commented on your other post. CB750F Super Sport - 1975-1978. Recently, I treated myself to an M-Unit basic and I have everything Enter the October CB750 Supply gift certificate giveaway! It's easy Click here, post something, and you're entered into the drawing! General Discussion. Logged R. Anyway. C $50. CB750A Automatic - 1976-1978. I would like to use a new coil that has removable sparkplug wires. All Spark Plugs; Spark Plug Caps; Spark Plug Wires; Spark Plugs; 1981 Honda CB750 DOHC CB750C 750 Custom Motorcycle Parts Honda CB750 749cc 4-cycle DOHC four VIN / Frame Number: JH2RC0116BM1000001 Engine: RC01E-2200001. The original spring coil binds at 15. The things I checked: - stator coils al 0. Reply. Some people have run DOHC coils or This ignition coil set has been manufactured to upgrade original / standard coils or to replace Dynatek coil packs on a Honda CB750 for the years and models shown above. They replace 30501-300-003 and 30502-300-003 or 30501-300-013 On the old Japanese motorcycles the current for the ignition system (coils) runs through both the main ignition switch (key) & also the kill switch - not ide Enter the October CB750 Supply gift certificate giveaway! It's easy Click here, post something, and you're entered into the drawing! General Discussion. 1 and 4 are paired and 2 and 3 are paired. Had it running with the choke on. The bike in the video is a 1982 Honda CB I put new condensers and points and he has the new OEM coils on the way . one for cylinder 1&4 and one for 2&3. The inner core of the points cam was Brass, I had a machinist cut out the brass and replace it with Electrical Engineer Evan from RM Stator shows you how to install a new stator and charging field coil rotor on your DOHC Honda CB. I thought this should be 12 volts, and don't know what to think about the drop. Buy ApplianPar Ignition Coil for Honda CB750 CB750K CB750C CB750F CB900C CB900F CB1000C CB1100F: Ignition Coils - Amazon. Jan 1, 2016 If you have no spark at the plugs you need to work backwards testing resistance (ohms) new sparkplugs check caps, HT leads, coil (1 coil for 1&4 1 coil for 2&3) replace if any found faulty. 4 out of The rest of the powerplant was much like previous versions of the CB750: single overhead camshaft, crankshaft riding in five plain insert bearings, a wet clutch, a 5-speed transmission (with gear ratios slightly altered) and heavy duty chain final drive. After the install, all four plugs spark really well, but it won't start thus indicating a timing issue (it ran fine before, carbs were rebuilt so I know it's not a fuel or a compression issue). Honda CB750 (69-78) Complete Refurbished Charging Systems NEW Cycle X "High output 20 amp system" Field Coils, Stator and Gasket Enter the October CB750 Supply gift certificate giveaway! It's easy Click here, post something, and you're entered into the drawing! General Discussion . (33) 33 product ratings - Honda CB750 SUZUKI GS750 DYNA 3 Ohm coil set DYNATEK DC1-1. This indirectly magnetized rotor spins inside the stator, like our XS650s. Don’t throw too many variables into CB750 K1 have two field coils one from the original K1 and a slightly later one ( year unknown, came with a used replacement cover I ordered). Veloandy's 1977 CB750F. FREE delivery Mon, Feb 19 . Think 6-7ohm on the stator wires which was an OK reading. Select the department you want 2PCS Ignition Coil For Honda CB750 1969-1974 CB750A 1976-1978 CB750F 1975-1978 CB750K 1975-1978 30501-300-003 30502-300-003. If you have a Many bikes have replaceable plug wires, but most Seventies Hondas use coils with permanently attached wires, meaning you have to replace the coil to replace the plug lead. Plugs cleaned and gapped slightly bigger, 0. IGNITION COILS - OEM Honda Part # 30500-422-013 Honda MODELS FIT 36 CB1000C-D 1983 1000 CB1000 900 Custom CB900F-B 1981 900 900 Super Sport CB900F-C 1982 900 900 Super Sport CBX-A 1980 1047 CBX CBX-B 19 cb650 cb900 cb750 CB750SC-C 1982 750 Nighthawk 750 CB750SC-D 1983 750 Nighthawk 750 we just gave our website an upgrade. CB750 Addict. I've been through this entire bike over every wire , nothing is skint or broken, looked even in head light and kill switch it's all in great shape , coil is only firing on the 1st plug that my timing light will pick up the no 4 fire is so very weak my light won't pick it up , and also very intermittent. am I correct in that they are for the field coil and need to be wired to a switched positive and If you are a fan of Honda bikes from the 1970s and 80s, you will love this blog post by Purpose Built Moto. Ignition coil issue? Thread starter jwing; Start date Jun 8, 2022; Tags dohc engine J. Buy It Now +C $28. striving to be an; Expert; Posts: 931; A penny saved. I can fire both coils when hooked up to 2&3. No,the kill,switch and all those safety switches are fine . Installed new coils and have the same issue. Iswitched the blue wire to the 1+4 cyl coil over to the 2+3 coil and wala it lites up the timing lite hooked up to 2+3. The field coil is wound to stock specifications. And the Cycle X info claims that it is the best and puts the other 2 to Yes. Best Match; Time: ending soonest; Time: newly listed; Price + Shipping: lowest first; Price + Shipping: highest first; Lowest Price; Highest Price ; Distance: nearest first; Gallery View; Customize; Shop on eBay. Dyna coils. Welcome to CB750 Supply. re terminated the coil ends as I wasn’t happy with the fit into the coils. PaoloBuell CB750 New member. I have one, extra they all work on 2&3 cylinder side. or Best Offer +C $66. Messages 214 Reaction score 1 Points 18 Location Mid South. Includes a complete set of two (2) Performance Coils, four (4) Spark Plug Wires, Boots, This project is an ignition module design to replace the stock unit for a 1980 Honda CB 750 C motorcycle using aftermarket GM ignition coils commonly found on Chevy Honda cb350F, cb400, cb500 and cb550 High out-put field Coils Rewound for higher out-put in the USA. Messages 349 Both of the green wires from the reg/rect should be connected to frame ground. For secondary you measure one plug hole to the other of the same coil. Will coils 1/4 work on Forums. Jul 20, 2017 Plugs are good. Getting spark out of one coil (cylinders 2 & 3) but nothing out of the other (cylinders 1 & 4). No luck, same issue. Has individual pod filters. Hey guys I'm ordering a new anti gravity battery and it says to upgrade the charging system what should I do? Should I upgrade To a solid state? Enter the October CB750 Supply gift certificate giveaway! it is 'transistorized' which is most definitely NOT the same thing. the coils are out of the cover and on my work bench I measure the resistance between the two wires on the coil right? Enter the October CB750 Supply gift certificate giveaway! It's easy Click here, post something, and you're entered into the drawing! General Discussion. I fired up the bike, went fine. Then went to test some loose wires with my multimeter Other thought was to ground the Field coil (sorry I called it a pickup coil in my post) and put a fuse inline to the white wire and connect to the battery and see if the fuse blows or My options are to do a minimal but expensive upgrade with a M-Unit or NWT X21 and custom controls and instruments or rewire the loom and keep the stock look albeit on a cafe racer frame. Have 78 CB750A with no spark. 51 shipping. Coil Specifications: Spark plug wires are 17" long Mounting holes are 102mm (4") apart. The multimeter reads that it is getting power, then as soon as I plug it up to the wire that connects the coil it drops off. points/condenser How to Bypass the Regulator - However, before bypassing the regulator, make sure the field coil (rotor) isn't shorted. The field coil is around 5-6 ohms, and powered by the regulator. Messages 4 Reaction score 0 Points 1 Location London. 98 shipping. This ignition coil has been manufactured to replace the original coil pack on a Honda CB750 for the years and models shown above. 3%. Lubrication was dry sump, and the battery and coil electrical system still featured points. These ignition coils have been manufactured to replace the factory OEM ignition coils on a Honda CB750 for the years and models shown above. Honda OEM Coil Set CB750 CB 750 K F A CB750F CB750A 30500-300-013. 4 out of 5 stars 3 ratings | Search this page . Clip from harness to coils has been replaced. C $312. If you have a weak spark on your Honda CB7 Enter the October CB750 Supply gift certificate giveaway! It's easy Click here, post something, and you're entered into the drawing! General Discussion. This is a great kit to modernize the stock ignition system! Hi guys, Running murray carbs, d8ea plugs, mk2 b6 coils, stock harness, resistorless caps, and delkevic exhaust. Sep 29, 2024. We will check the coils by removing Dyna / Dynatek ignition kit with Magna coils for the SOHC Honda CB750 from 1969-1978. If plugs have been fuel wetted then it may only be them shorting down the sides rather than going through the airgap. I need the choke on at first start, even in Florida. 1976 CB750 K6 Full 1976 CB750 K6 Cafe'ish. coil wires. Opens Enter the October CB750 Supply gift certificate giveaway! It's easy Click here, post something, and you're entered into the drawing! General Discussion . Wiring harness is brand new. I own multiple bikes, so I'm not really looking for sportbike performance or touring comfort, just a recommendation for a set of decent shocks and fork springs to put some life back into Ive been working on a 1980 Cb750f Super Sport. Now I am convinced that is what melted the spark units . OEM Ref#30501/30502-300-003/013. Then you solder new wires to the coil output, pot this joint when verified you have good termination before potting the end, then youcover the rest with RTV or you could use epoxy putty, sand smooth, clean slap a littleenamel or other weather resistant paint over the epoxy. Then I discovered that I was only getting 8v to the No External module to mount Optical sensors used for extreme spark stability Multi-spark operation with up to three separate sparks Coil dwell can be set to different values at different RPM's LED static timing indicator Automatic coil shut off protects coils from over heating using stock coils, you should get a reading of approx 5 ohms. Meter jumps to 9. What's new. On the old Japanese motorcycles the current for the ignition system (coils) runs through both the main They do this by delivering current to the stock coils for a longer period of time; the coils will store more energy (especially at high rpm) and deliver it to the combustion chamber. I am getting spark on 1 and 4, but not 2 and 3. We ran optical ignitions back in the '70s on drag race cars, they have flaws for sure and the way that 'X' system is designed? I find several things wrong with it just laying in the box. My electrical experience is ok but because the coils on the wiring diagram have no + or - identity for them ,I'm thinking I may have put Ignition Systems, Coils, Plugs & Caps, Ignition Switches, Points, Condensers ; Wiring Harnesses, Rectifier/Regulators, Rotors, Stators ; Starter System Parts, Starter Motor Parts, Starter Clutch Roller Kits, Battery Parts, Fuse Box CB750-K0 1970 750 750 Four Street CB750-K1 1971 750 750 Four Street CB750-K2 1972 750 750 Four Street CB750-K3 1980 CB750 I have two cold cylinders, 2&4. Messages 23 Reaction score 0 Points 1 Hi, I have an 81 cb750c with 3,800 miles that I bought as a winter project but I cant quite get it running right. Messages 189 Reaction score 70 Points 28 Location England. H. They come with pre installed plug caps like a car. It is complete except for the last stretch of wiring. May 28, 2016 #3 Weak power to coil. Claydog CB750 Enthusiast. #30501/30502-300-003/013 (100mm. 6 watchers. Skip to main content. Did all possible tests found on website. amc49 The bike does have two ignition coils they are under the tank/handle bars. Wiring, controls and instrumentation. Coils and wires are new. Buy It Now +C $13. New media New comments Search media. The Garage . One new condenser could be bad as well. Steer clear of Bremi - they constantly fail and there was a recall on them. Purchased this bike in not running condition, compression 160 lbs on all 4 cylinders. Messages 4 Reaction score 0 Points 1 Location New York. Messages 16 Reaction score 8 Points 3 Location Rockledge, Florida. Messages 19 Reaction score 5 Points 3 Location New Zealand. 6. 82 cb750c coil issues?? Thread starter sks72107; Start date Feb 20, 2016; Tags dohc electrical S. Also all 3 yellow stator wires ohm out correctly yet have continuity between all 3. Thanks in advance (my first build so a lot to learn). It is my understanding that the 'straight into the coil with the spark plug wire removed' is 'plug wire hole'. " Would I have to retune/advance the timing or do anything else if I were to perform this swap? Any I found the classic, hand drawn, simplified scheme for cb750 and hooked it up according to that. 1982 CB750c all stock. 94 shipping. Dynatek Dyna S CDI ECU Ignition HONDA CB500 CB550 CB750 DS1-2 (Fits: Honda CB750) This video shows you how to determine which electrical component is bad if you're engine is not performing as expected. 1973 cb750 ignition. Since this article was published in 1981, some of the specific parts referenced might not be available and it would be good to update this with current information. $182. Messages 7 Reaction score 0 Points 1 Location Sacramento,Ca. Aug 31, 2018 So working on getting this 78 cb750a up and running. Rewound in the USA for 20 amp out-put. They looked ok but I switched them to hopefully get spark on the outer cylinders. Your Honda's field coil is a non-rotating coil fixed to the sidecover. I appreciate any knowledge . Fits: CB750K (1969-78) Dynatek Coils Coil 3 ohm Dual output Ignition DC1-1 Honda cb 500 550 750 gl1000 (For: 1969 Honda CB750) In Stock & Ready To Ship, Free 2-3 Day Airmail Shipping Brand New · Dynatek Delivering to Lebanon 66952 Update location 2PCS Ignition Coil For Honda CB750 1969-1974 CB750A 1976-1978 CB750F 1975-1978 CB750K 1975-1978 30501-300-003 30502-300-003 . But I am not entirely ruling out float height as a possible cause. Classic Honda 4 Cylinder Motorcycles. I checked and the wires from the coils to the points are correct. All; Auction; Buy It Now; Buying Format. This will be calculated and applied at checkout. Find out how to make your Honda engine reliable and perform better than ever. Select country Postal code. This is a great kit to modernize the stock ignition system! The Dyna S Ignition System is a complete self-contained electronic ignition system built with the latest state-of-the-art engineering. Should I replace it? I am also looking at replacing the stock coils and possibly some wiring as well. 2 plug is dry and looks like it’s not getting spark, looks completely unused. TCI models (such as OP's CB750) use a standard approach where power is passed through the switch when set to run. Sponsored. Is this going to be an issue? Do I need to readjust the wiring to get it to seat fully? Picture below to show the gap. Current visitors. It also uses two GM HEI igniter modules. I have a 1976 Honda CB750 F1 with a charging problem. If using DOHC or most aftermarket "hot" coils the reading should be about 3 ohms. Heck, even hard racking of the throttle could probably do it. Should I be getting 12 volts? Forums. 99. I have looked at the wiring diagram, but not sure what would cause zero spark. Latest activity New posts New media New media comments. Thread starter 88SS; Start date Jul 20, 2017; 88SS Active Member. Dec 6, 2023. ELX-201 $ 399. When I rotate the crankshaft the test light remains on through 360 degrees. JTech. The rotor is like our XS650 rotor, but hollow inside, and spins around the fixed field coil. D. Messages 5 Reaction score 0 Points 1 Location Biddeford, Maine. Manufacturer Part: 30501-300-003 30502-300-003 Package: 2 x Ignition Coil w 4x Spark Plug Caps Coil Specifications: Spark plug wires are 17" long Mounting holes are 102mm (4") apart. Mounted that up and didn't see much change. c-c mounting points) The coils are not polarity sensitive, and are not marked + or - for that reason. Honda SOHC 1969-1978. Wiring is “ custom” to say the least. I am getting power in the yellow wire all the way up to the connection to the coil. If you have no spark at the plugs you need to work backwards testing resistance (ohms) new sparkplugs check caps, HT leads, coil (1 coil for 1&4 1 coil for 2&3) replace if any found faulty. If our stator includes a pickup coil Shop Motorcycle Ignition Coils for 1974 Honda CB750 with eBay Guaranteed Fit. Jul 2, 2019 #1 I put a K6 Author Topic: CB750 Upgraded Charging System (Read 3239 times) 0 Members and 1 Guest are viewing this topic. The stockers on a 750 are 12V, 5 ohm. 99 $ 35. Honda CB Charging Rotor Add to Cart Honda CB Charging Rotor Honda CB Charging Rotor, Replaces OEM#31110-426-832. Should I upgrade To a solid state? Stay with Forums. co/d/7c9ovnQ Your Honda's field coil is a non-rotating coil fixed to the sidecover. Most orders ship the Brand new ignition coil to fit: Honda CB 750 F2 (1992-2001). The new reg recs wiring harness seems to have a jumper wire come from one of the field coils to the Try finding a set of CB750 Honda Coils , they mount to stock location you just have to flip them over. 5 ohms Secondary test without caps on - 15 Secondary test with caps on -26. Brand New. So far I did the basic test of starting the bike with the spark plugs off & grounded to the exterior of Enter the October CB750 Supply gift certificate giveaway! It's easy Click here, post something, and you're entered into the drawing! General Discussion. The wire to the field coil is what is only 8volts the rest of the bike gets 12v when the battery is fully charged. brettp. AUX outputs generally works for this. 99. forgiven CB750 Member. Please check mounting prior to purchasing as we have other sizes av Ignition coils and caps for the SOHC Honda CB750 from '69-'78. 4. Have tested them all . It also has one cdi box feeding each coil they are under the seat above the battery box. Thread starter forgiven; Start date Jul 2, 2019; Tags electrical F. 21 sold. Mar 7, 2024 #1 Hi guys I’m building a cafe racer and got to the part where my bikes running and nearly finished to ride but there’s this squeaking/rattling sound at the Hi, I’ve replaced my original coils as they were badly split. I found this diagram that explains how to simply wire your bike kickstart only. Same issue. New posts Search forums. Thread starter SebastianP; Start date Mar 7, 2024; Tags cb750 nighthawk S. all thoughts welcomne! ~Thanks! On the old Japanese motorcycles the current for the ignition system (coils) runs through both the main ignition switch (key) & also the kill switch - not ide My stock '81 cb750 coils were on their way out, so I replaced them with a pair of CBR f2 coils in hopes of fixing the problem and giving my plugs a little more juice. I tried a newer spark plug that I know works and still the same,made sure the ht wire was firmly in the coil in the two weak spark plugs. Ground the black to the frame or engine and hook the red to the positive side of a coil. Buy Set of 2 Ignition Coil & Caps For Honda CB1000 CB900 CB750 CB650 1979-1983 Goldwing 1100 1200 GL 1100 1200 Nighthawk 650 750: Ignition Coils - Amazon. Brand: Ayiddue. I suggest getting a shop manual so you have the procedure and specs. 21. 112 sold. 0v battery reading while at idle & throughout rpm range. The DOHC Garage (1979-1983). This kit will let you upgrade your turn signal bulbs, tail light bulb, instrument cluster bulbs and your stock flasher relay with high quality, low power consumption LEDs. I had a 72 Norton that acted the same. The coils are 12. C. Measuring at the coils itself, I only get 2V and 1. Jul 9, 2023. While testing alternator: Passed: . Honda CB 750 F2 (D. Left coil to cylinders 1 and 4, right coil to cylinders 2 and 3. Perpetual Beginner; Hot Shot; Posts: 267; 1978 CB750K; Suspension upgrade recommendations? CB750 « New member working on a 78 CB750A. Next, the black/white wire from the kill switch should connect to the ignition coils (also black/white wires I also have a set of coils from a 1978 CB750 F which seem identical to the one coil from my bike. Last one. is Dyna / Dynatek ignition kit with Magna coils for the SOHC Honda CB750 from 1969-1978. Sort: Best Match. Thanks Honda CB 750 K (1969-1978). using stock coils, you should get a reading of approx 5 ohms. CB750 Member. The green wire from the field coil should also be connected to frame ground, and the field coil white wire should be connected to the loose reg white wire (The stator, with 3 yellow wires, is the output side of the alternator, feeding into the rectifier, and the field coil is the input side, fed from the In this video, we talk about upgrading the charging system on the Honda CB175, CB200, CB350, CB360, and CB450 family of bikes with the single-phase permanent magnet style stator coil. All Listings 2 product ratings - Honda New CB750 Coil Set CB 750 K F A CB750F CB750A a 30500-300-013. Very inexpensive, and allows quick experimentation or mods. com FREE DELIVERY possible on eligible purchases Delivering to Nashville 37217 Update location Automotive Parts & Accessories. BOTH the primary and secondary are inside the coil itself. Looks like the PO wired the coils directly to the battery through a relay. I am looking to modernize the regulator on my '72 750. you can upgrade your coils to DOHC or aftermarket such as dyna coils if you want removeable/replaceable plug wires. 80mm centre to centre mounting with 2 connectors and 2 leads. I can repeat this consistently. I can only fire the 2&3 cylinder from the pulsar. Ricks Ignition Coil Honda CB350 CB400 CB550 CB750 CB750F 71-78 - 23-102 269317 (For: 1975 Honda CB750F) Authorized Ricks Motorsport Electric Dealer Brand New · Ricks Motorsport Electric Update your shipping location. Wez_ CB750 Addict. Top Rated Seller Top Rated Seller jtmarks77 (40,501) 99. 7. Messages 4 Reaction score 0 Points 1 Hi, I have a 1981 cb750c DOHC which has been having ignition issues. Swapped spark units, no change. Top Rated Seller Top Rated Seller fuspeedparts (4,227) 99. Use this kit with the stock points ignition or an electronic ignition. Any help appreciated Happy New Year to all . Top quality aftermarket parts from Moto-electrical. Hi everyone, new here and looking for some wiring help. Carbs have been cleaned and have Upgrades for charging system? ‍♂️ cb750 dohc. Post reply I've changed coil, switched the spark units, pulse gen tests fine, 514 ohms on yellow wires and 516 on blue wires. High Performance Field Coils. “ where are the white and green field coil wires supposed to be wired? Both are running to an aftermarket Honda CB 750 k7 here. 2 Brand New 12V Points ignition coils to fit: Honda CB 750 K-K7 SOHC (1969-1978). I do not think that I can adjust the float height on my carbs at all, there is no metal tab, just the float and needle. Passed all of them, except couple (will be numbered bellow). amc49 CB750 Guru. JTech; Aug 22, 2024; The SOHC Garage (1969-1978) Replies 6 Views 361. My battery is not charging. Jul 7, 2019 #19 Yeah, I agree with Dana. I have solid blue spark on all 4 plugs. Double checked earth’s for the coils and spark units. If your readings are very far off from the given values, the coil is probably bad. 45mm before the valve opens enough to bleed off any pressure. Found out the points cam was worn out and wobbled, that in turn caused the points to cause a misfire. 58. Thanks to anyone for some help. Shop by category . This is a great kit to modernize the stock ignition system! Wires on the Kit Includes: 2 Magna High Output Coils, 4 Spark Plug Caps, Copper Core Spark Plug Wires, 1 Electronic Ignition, Fits Honda: CB750A Automatic - 1976-1978, CB750F Super Sport - 1975 Accel Super Coil Kit Honda Cb750 Cb750k Cb750f Cb750c Cb750a Ignition Coils. Now I've been TOLD that I can run the front end of a 77-78 750F supersport front end (Comstar wheel with dual discs) and get a 77-78 750K front wheel (spoked wheel with single disc) and bolt the supersport brakes I wonder as well what keeps inertial forces from sliding parts of the coil if say one is doing stupid things like popping the clutch or burnouts that suddenly greatly change the motor speed. The coil on the right has the yellow wire that goes the 2-3 points. Serviced carbs (I did remove that stupid vacuum controlled petcock) I used factory sized jets I used sizing chart from the shop manual and they were the same size that were installed, new plugs, and the bike started right up, seems to idle ok but could be better. 75mm. Shop By The dyna coils do have a reputation for going bad. 14/48 on the sprockets. This ignition coil set has been manufactured to upgrade original / standard coils or to replace Dynatek coil packs on a Honda CB750 for the years and models shown above. So I This ignition coil set has been manufactured to upgrade original / standard coils or replace Dynatek coil packs on a Honda CB750 for the years and models shown above. Are you running points with these coils or the dyna setup? Cylinders 1 and 2 are on seperate coils so if they are not firing right then you have an issue with each coil. Can anyone point me in the right direction to diagnosis this ? Thanks in advance . Sep 5, 2024 #1 Hello Checked voltage at yellow and blue coil feeds ( had battery voltage ) but zero spark . Last winter I installed a complete new wiring harness. Does anyone have any experience with aftermarket parts for this? Such as this Buy Goodbest New 2 SETS Ignition Coils and Spark Plug Caps Compatible With Honda CB750 CB750A CB750F CB750K 750 Four 1969-1978 Coil set: Ignition Coils - Amazon. cover. Has anyone any experience or knowledge of how these would compare to the stock type . Feb 4, 2019 Biggest unsure is with how to connect reg/rec, spark units and coils with M-unit. Get the best deals on Motorcycle Ignition Coils for 1974 Honda CB750 when you shop the largest online selection at eBay. Secondaries go to spark plug. Dirty point set. Just bought a set of Dynatek wires for my 750 to go with the coils and electronic ignition. I have got a solid state reg/rec from Mikes, one of the new Honda solenoids, bladed fuses, led lights everywhere but the headlight, relayed lights and horns, a Hondaman ignition box and an AGM battery. 00 . Messages 36 Reaction score 1 Points 6 Location central I'd like it to handle and brake as well as possible, so that means upgrades up front. Got a 77 CB750 (not sure which model) that’s been bobbed by previous owner. Log in Register. So I think I should upgrade my coils. J Dynatek Coils Coil 3 ohm Dual output Ignition DC1-1 Honda cb 500 550 750 gl1000 (For: Honda CB750) Opens in a new window or tab In Stock & Ready To Ship, Free 2-3 Day Airmail Shipping Wanted to upgrade the charging system anyhow so I bought the 4into1 all in one regulator/rectifier. New battery turns engine over. ajuz qwwjt rdwi yfunvo enrieeip rabpzm zwsjuouv dtpscmw bqxuu mmcvumeh