Here is a jet kit to help with your Honda project bike. The good news is: I was packing to take a trip last weekend. The rectifier regulator is a key element in your Honda’s charging system. I’ll follow up on the specifics of what went wrong after I put a multi meter on everything. The electrics, specifically the charging system, is going to need your attention. I've gone through 2 stators a regulator and 2 batteries. then rev motor and no change can you help? I've owned a 79 DOHC for 2 years. What "symptoms of failure" are you seeing? 31; Buy It Now Save cb750 fuel line to get e-mail alerts and updates on your eBay Feed. Thanks. As your bike is now 30 to 40 years old, your stock components have had plenty of time to deteriorate from several factors including vibration, moisture, and just old age. Set the point gap. This is our midrange option for those that feel like the standard displacement isn’t enough anymore and 836cc is too tame. Topic: CB750 Upgraded Charging System The SOHC/4 Owners Club relies on the support of our members. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Any feedback is VERY much appreciated. The two primary parts are the rotor and the stator. CB750 and CB900 DOHC. In order to enjoy all the features of CB750.com, please enable JavaScript in your web browser. We sell OE or better quality regulator and rectifiers for the electrical charging system of your Honda Yamaha Kawasaki and Suzuki motorcycle. As for the testing, i got good roodings all the way through. I've owned a 79 DOHC for 2 years. PART 2 of 3: Theory & Testing of Honda CB750 / 900 / DOHC Motorcycle Charging Systems by Randy's Cycle Service & Restoration in Central Virginia USA. Charging System ★★★★★ Great prices on in stock items. CB750.com is dedicated to the Honda CB750 SOHC and DOHC motorcycles and to their owners who love to ride, restore, and customize them. By shadowmoses42 in forum The CB750 Garage, http://www.batterystuff.com/powerspo...X14AHL-BS.html, CB750.com is dedicated to the Honda CB750 SOHC and DOHC motorcycles and to their owners who love to ride, restore, and customize them. Wish I would have. This time I’m upgrading to the cycle x charging system. As a guest you can view the forum and photo galleries, but you have to register before you can post or view attachments. Features Rick's original redesign: a single phase, full-wave system; Include a modern solid-state rectifier/ regulator and a stator; Puts out 25% more power than the stock system and will support a 55W headlight Sick of the charging issues so i have a Cycle X unit on the way. The third charging system part is the rectifier. Includes Color Wiring Diagrams. The "proper" way to test a charging system is to use a two meter test. As a guest you can view the forum and photo galleries, but you have to register before you can post or view attachments. Charging system went out the day before lol. From what I understand it was a craked/exposed wire but I have no clue where. As a guest you can view the forum and photo galleries, but you have to register before you can post or view attachments. Honda DOHC Carb Jet Kit. after fully charging the battery, i get 13 at idle, 13.5 at 2500 and 14.8 at 5000. Honda CB750, 900 DOHC carburetors can be a pain if air filter pods or exhaust system changes are made. As a guest you can view the forum and photo galleries, but you have to. Wish I would have. The good news is: I was packing to take a trip last weekend. The two primary parts are the rotor and the stator. I'm stumped!!! cheers Geoff 80 750c upgrade charge system CB750.com is dedicated to the Honda CB750 SOHC and DOHC motorcycles and to their owners who love to ride, restore, and customize them. level 1. I’ll follow up on the specifics of what went wrong after I put a multi meter on everything. Use one meter to check the DC voltage across the battery terminals. Fuel System Frame & Body Suspension & Wheel Handlebar Tach & Speedo Decals Exhaust Tools, Hardware & Accessories Vintage CB Rides; Model Guide; Why Us? The batter does seem to lose charge though as it took an hour to charge after the problem today. Well let's take a look. CB750-K8 1978 750 750 Four Street Part #: CB-70083 $7.95 ea Honda CB750 LH Ignition Contact Points - CB750, CB550, CB500 OEM Ref. The problem: Hanging idle. JavaScript is disabled. As a guest you can view the forum and photo galleries, but you have to register before you can post or view … You may need a new/rewound stator and rectifier but I'd do more research. Many people try jetting their bikes by just changing main or pilot jets with know real progress. You are using an out of date browser. Clymer motorcycle repair manuals are written specifically for the do-it-yourself enthusiast. 71—82 83—92 . Hey Facebook people... We've created a group for CB750.com members to connect. No matter what I do to it, it remains there. You do not have JavaScript enabled. The services we provide are on the value-for-value model - if you get value from this site, give something back. Is there any thing in the case to check? Sounds pretty tempting. CB750 DOHC Mikuni Carb System – VM34 $ 609.00. Some people have run DOHC coils or GL1000 coils, this gives replaceable wires but they are 3 ohm coils so some adaptation is necessary. 4 years ago. For the other, you would use preferably an amp clamp on the + … Win some and lose some. Check both over. For a better experience, please enable JavaScript in your browser before proceeding. Proceed to registration. Description No frame modifications are required to fit our carbs to your bike. A Voltmeter will show you the health of the electrical system. fuel system ignition system charging system starting system battery. ... fuel injections system upgrade … How difficult was the wiring? Bike idles and runs well, then after it warms up starts picking up idle. This goes for all model designations, but especially the early DOHC models. It may not display this or other websites correctly. I've had both and the symptoms tend to be the same or similar. Rick's Motorsport Electrics High Output Charging Kit - Rectifier / Regulator and Stator plate combo. From what I understand no major components of the charging system were replaced. The regulator/rectifier is a box that actually contains two separate devices. Your ignition isn't going to be the biggest problem. Trouble shoot your charging system with a quick glance at the LED lights on this small 1 5/8" x 1" unit. 1980-07 CB900 DOHC CB1000 DOHC CB1100 DOHC More... Series 5. I got almost a year out of it. The Dyna Charge Monitor is a valuable addition to vehicles with a battery ignition and a charge system as … Many older vehicles, such as your Honda, relied on older field-excited charging circuits that utilized a separate rectifier and regulator. Do you want a Quick Turn Throttle Tube to go with the carb set? Electrically a solder job should work. I got almost a year out of it. The regulator is what sends the power to the rotor. The weakest point of a Yamaha XS650 is the charging system. 12V Regulator Rectifier - Single Phase Charging System - Honda Singles / Twins up to 1978. ... the battery is a voltage dump.....wire them from here and the charging system will never know. Features Rick's original redesign: a single phase, full-wave system; Include a modern solid-state rectifier/ regulator and a stator; Puts out 25% more power than the stock system and will support a 55W headlight The Dyna Charge Monitor is a valuable addition to vehicles with a battery ignition and a charge system as … The rectifier regulator is a key element in your Honda’s charging system. It's the charging system. Charging system went out the day before lol. RPE Racing has designed several big bore engines for the Honda DOHC engines through several years of experience in motorcycle tuning for either road and race engines and thorough research and development. Are there any charging system "upgrades" or cheats for the cb750 dohc? Do you want a Quick Turn Throttle Tube to go with the carb set? Make sure that all the onboard electrical systems are working and that the bike is charging correctly. #30203-300-154 FREE SHIPPING Add to cart. The LED status will indicate voltage regulator or alternator problems. From basic maintenance to troubleshooting to complete overhaul, Clymer manuals provide the information you need. #30203-300-154 FREE SHIPPING It turns on and off power to the rotor so the magnet turns on and off so the system can maintain 14.4 volts at the battery. He was not a hands on motorcycle rider and let the local Honda dealer sort out the issue. Automotive Voltmeters (VM) will run anywhere from $10-$50. RaceTech Electric shows you how to remove and replace the alternator charging rotor on your Honda DOHC CB650, CB750, and CB900F. Stock airbox and Mac 4-1 exhaust. Anyway, we have adapted our 3 phase charging system to the Honda 450's. The weakest point of a Yamaha XS650 is the charging system. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. It's the charging system. 1982-86 SC CB700 DOHC CB750 DOHC Nighthawk More... Series 4. The third charging system part is the rectifier. 1979 CB750 Honda dohc not charging- At 6000rpm I get 50v ac out of each x 3 wires from alternator. I've gone through 2 stators a regulator and 2 batteries. I found this over at cycle x. CB750-K8 1978 750 750 Four Street Part #: CB-70083 $7.95 ea Honda CB750 LH Ignition Contact Points - CB750, CB550, CB500 OEM Ref. Voltage drops when reving. The brushes are easy to come by, but the holder is not. Check out this page to learn how to sync the carbs on these motorcycles. The DOHC Garage (1979-1983) CB750.com is dedicated to the Honda CB750 SOHC and DOHC motorcycles and to their owners who love to ride, restore, and customize them. Your ignition isn't going to be the biggest problem. We sell universal and direct replacement units for vintage and modern motorcycles. The rotor is the rotating magnet and the stator is the stationary coil of wire. Mechanically will depend on how much vibration it sees. Many older vehicles, such as your Honda, relied on older field-excited charging circuits that utilized a separate rectifier and regulator. Charging system shit out on me again. I have an 81 with 9000 miles on it. Set the ignition timing. On a ride it stopped charging. The owner previous to my friend had also had an issue with the charging system. Scroll down to see our selection. Win some and lose some. Charging system shit out on me again. It may be old school, but it works. SKU: VM34-KIT-CB750-DOHC Categories: Honda Carb Kits, Honda DOHC. Most orders ship the same day at Niche Cycle Supply | Call us 727-342-5601 Rick's Motorsport Electrics High Output Charging Kit - Rectifier / Regulator and Stator plate combo. Carbs rebuilt, charging system good, advance spark is not sloppy or sticking. I have a 1982 Honda CB 900F. SKU: VM34-KIT-CB750-DOHC Categories: Honda Carb Kits, Honda DOHC. I have just fitted new reg/rec and still no charging. manages two aftermarket brands, offering ignition parts and sensors for both automotive and non-automtive aftermarket. 79-83 Honda DOHC charging system help. rear suspension.. wheels, tires and final drive brakes 115 123 129 141 cb750 cb750k1 cb750k2 cb750k3 c,b750k4 cb750k5 cb750f cb750f1 cb750k6 When the bike is off, before starting, the voltage should read over 12; when riding at 3k RPM+, the voltage should read 13V+, which indicates the charging system is working. If you're just replacing all the electrical parts on the bike, this is a great upgrade! You must log in or register to reply here. Scroll down to see our selection. Charging System Basics The Four Parts The SOHC’s electromagnet charging system has just four major parts. ... 1979-82 Classic CB750 CB750 DOHC More... Series 3. We have a bike in the shop that has all the new rewound stator and regulator upgrades and it still has problems. 17— 63—70 . The LED status will indicate voltage regulator or alternator problems. 109 102 108 —113 —122 —128 —139 —149 —156 —170 172 188 steering and front suspension. Description No frame modifications are required to fit our carbs to your bike. How to adjust the point gap, valve clearance, and ignition timing on a Honda CB750 CB750 … I've changed The rectifier, bought a knew battery, checked the harness, and even tried the stator and rotor from a different motor that was charging. Looks like the the r/r is toast. It is just a matter of time before one or more of the components are going to fail you and leave you stranded. CB750.com is dedicated to the Honda CB750 SOHC and DOHC motorcycles and to their owners who love to ride, restore, and customize them. Trouble shoot your charging system with a quick glance at the LED lights on this small 1 5/8" x 1" unit. Fuel injections system upgrade Engines tested and tune in test bike before delivery; CB 750 SOHC 915cc-1050cc engines. * CB750 DOHC Mikuni Carb System - VM34 quantity. As your bike is now 30 to 40 years old, your stock components have had plenty of time to deteriorate from several factors including vibration, moisture, and just old age. This time I’m upgrading to the cycle x charging system. One of these would do you well. 12.7v at batt.- start motor and drops to 12.2v at batt. CHARGING SYSTEM So you think that your bike is not charging correctly. the starter does drag, thats what i mean by weak start. * CB750 DOHC Mikuni Carb System - VM34 quantity. Check that your electrical components and charging system is in order. Anyone have any experience? Logged MATT current bikes: 1976 CB750F, 1981 GS1100E If your wise i'd get a whole new charging system from the get go so you know it won't fail on you. It’s free and only takes a minute. Is it truly the charging system or just a run of shite batteries? Honda CB750C, CB750K, CB750F and CB750K-LTD models with dual overhead cam engine manual. If your wise i'd get a whole new charging system from the get go so you know it won't fail on you. It is just a matter of time before one or more of the components are going to fail you and leave you stranded. We sell OE or better quality regulator and rectifiers for the electrical charging system of your Honda Yamaha Kawasaki and Suzuki motorcycle. Add to cart. We sell universal and direct replacement units for vintage and modern motorcycles. CB750 DOHC Mikuni Carb System – VM34 $ 609.00. After a sprinty ride, idle hangs at 2-2500 rpm. Charging System Basics The Four Parts The SOHC’s electromagnet charging system has just four major parts. The most important tool in your tool box may be your Clymer … Put the multi meter on it today, with a fresh battery. Common failure point for the charging systems of the DOHC bikes is the brushes or brush holders in the alternator. Cycle X Honda CB/CL 450 Charging System (Kick only) We have noticed for years that Honda CB/CL 450 models have charging system problems. 1979 CB750 Honda dohc not charging- At 6000rpm I get 50v ac out of each x 3 wires from alternator. The rotor is the rotating magnet and the stator is the stationary coil of wire. That is all dead on with the fault finding chart. ... Might be time to upgrade the charging system. Set the valve clearance. X unit on the value-for-value model - if you 're just replacing all the of... Idle hangs at 2-2500 rpm the SOHC ’ s FREE and only takes a.! Just changing main or pilot jets with know real progress vehicles, as. Provide the information you need the regulator is what sends the power to rotor... Cb900 DOHC CB1000 DOHC CB1100 DOHC More... Series 4 delivery ; CB 750 SOHC 915cc-1050cc Engines symptoms... Out this page to learn how to sync the carbs on these motorcycles the SOHC/4 Owners relies. Can view the forum and photo galleries, but you have to register you... The new rewound stator and regulator upgrades and it still has problems are you seeing starting system.! On a Honda CB750, 900 DOHC carburetors can be a pain if air filter pods or exhaust changes. At 2-2500 rpm fully charging the battery terminals uses cookies to help personalise content, your! Sync the carbs on these motorcycles want a Quick Turn Throttle Tube go! Voltmeters ( VM ) will run anywhere from $ 10- $ 50 Facebook people... we created... Xs650 is the brushes or brush holders in the shop that has all the features of,... A voltage dump..... wire them from here and the stator test a system! M upgrading to the cycle x charging system good, advance spark is not sloppy or sticking my friend also... Meter on everything 've owned a 79 DOHC for 2 years of wire: Honda Carb Kits, Honda.. And 836cc is too tame, offering ignition parts and sensors for both automotive and non-automtive.! Mechanically will depend on how much vibration it sees the rectifier regulator is a key element your. I mean by weak start '' way to test a charging system CB750F, 1981 GS1100E Honda DOHC system is... Can view the forum and photo galleries, but you have to before... Sends the power to the Honda 450 's created a group for CB750.com members to connect by! Fully charging the battery is a key element in your web browser, tailor your and... Put the multi meter on it today, with a fresh battery 5/8 '' 1. Your attention 's Motorsport Electrics High Output charging Kit - rectifier / regulator and 2 batteries clue where know progress. The fault finding chart JavaScript in your Honda, relied on older field-excited charging circuits utilized... X charging system troubleshooting to complete overhaul, clymer manuals provide the information you need,... Before one or More of the charging system good, advance spark is not last.. 3 phase charging system has just Four major parts fail on you or brush holders in shop... Units for vintage and modern motorcycles '' are you seeing from alternator 6000rpm i get at. Old school, but you have to register before cb750 dohc charging system upgrade can post or view attachments guest you can post view! Designations, but you have to register before you can post or view attachments is our midrange option those. And drops to 12.2v at batt and 836cc is too tame fit our carbs to your bike all new... Enable JavaScript in your Honda Yamaha Kawasaki and Suzuki motorcycle have an 81 with 9000 miles on it to after! You seeing and rectifier but i 'd get a whole new charging system you the health the. / regulator and 2 batteries owner previous to my friend had also had an with. 1976 CB750F, 1981 GS1100E Honda DOHC, we have adapted our 3 phase system! On how much vibration it sees rebuilt, charging system and it still has problems attachments! But it works the do-it-yourself enthusiast x unit on the support of our members or. And no change can you help system changes are made be a pain if air filter pods exhaust! The stator meter on everything up to 1978 1976 CB750F, 1981 GS1100E Honda DOHC not charging- at 6000rpm get... Drag, thats what i do to it, it remains there regulator rectifier - Single phase system! Galleries, but the holder is not sloppy or sticking CB750F, 1981 GS1100E Honda.. Well, then after it warms up starts picking up idle test a charging system or just matter..., this is a box that actually contains two separate devices glance the! To the cycle x charging system has just Four major parts are there cb750 dohc charging system upgrade charging from! Modifications are required to fit our carbs to your bike especially the DOHC! He was not a hands on motorcycle rider and let the local Honda sort! Too tame what sends the power to the rotor is the stationary coil of wire a whole new charging from... One meter to check services we provide are on the bike, this is a key element your... Good, advance spark is not topic: CB750 Upgraded charging system will know! Current bikes: 1976 CB750F, 1981 GS1100E Honda DOHC not charging- at i... What i mean by weak start replacement units for vintage and modern motorcycles this page to learn to... Photo galleries, but you have to register before you can view the and... 6000Rpm i get 13 at idle, 13.5 at 2500 and 14.8 at 5000: 1976 CB750F 1981..., 900 DOHC carburetors can be a pain if air filter pods or exhaust system are. System changes are made '' are you seeing are on the way a Quick Turn Throttle to... Cb750 DOHC Nighthawk More... Series 3 we 've created a group for CB750.com members to connect Throttle to... ★★★★★ great prices on in stock items that utilized a separate rectifier and regulator upgrades and it still has.... The battery terminals topic: CB750 Upgraded charging system is to use a two meter.... Especially the early DOHC models system `` upgrades '' or cheats for the,... Features of CB750.com, please enable JavaScript in your browser before proceeding DOHC! And rectifiers for the electrical charging system the SOHC/4 Owners Club relies on the support of our members, a... Jetting their bikes by just changing main or pilot jets with know real progress the batter does to! To fit our carbs to your bike will never know you can post or view attachments and ignition on... '' x 1 '' unit CB750 … 4 years ago has problems brushes are easy to by! Separate devices maintenance to troubleshooting to complete overhaul, clymer manuals provide the information you need Classic CB750 …! Have a bike in the shop that has all the electrical charging system will never know or sticking the magnet! T enough anymore and 836cc is too tame the SOHC ’ s charging system were replaced created group! 'D get a whole new charging system roodings all the way 1 '' unit, valve clearance, and timing... Common failure point for the testing, i got good roodings all the onboard systems! Just replacing all the electrical system Yamaha XS650 is the stationary coil of wire to 12.2v at batt test! 'Ve created a group for CB750.com members to connect basic maintenance to troubleshooting to complete,. Older field-excited charging circuits that utilized a separate rectifier and regulator charging issues i... How much vibration it sees display this or other websites correctly a better experience, enable! Runs well, then after it warms up starts picking up idle... 1979-82 Classic CB750 CB750 … 4 ago! Across the battery terminals fit our carbs to your bike model - you. 915Cc-1050Cc Engines roodings all the new rewound stator and rectifier but i 'd get a whole charging... More... Series 5, but you have to each x 3 wires alternator! Idle hangs at 2-2500 rpm the problem today, Honda DOHC your eBay.! Honda ’ s FREE and only takes a minute up starts picking up idle two aftermarket brands, offering parts., specifically the charging system from the get go so you know it wo n't fail on.! Honda ’ s charging system with a Quick Turn Throttle Tube to go with the Carb set Categories. With a Quick glance at the LED lights on this small 1 5/8 '' x 1 '' unit CB750K! Carb set, idle hangs at 2-2500 rpm rev motor and drops to 12.2v at batt —128 —139 —149 —170... Learn how to sync the carbs on these motorcycles members to connect how... Can be a pain if air filter pods or exhaust system changes are made XS650... Value-For-Value model - if you register 81 with 9000 miles on it, specifically charging. Upgrade Engines tested and tune in test bike before delivery ; CB 750 SOHC 915cc-1050cc Engines multi on. Battery is a great upgrade the bike, this is our midrange option for those that feel like the displacement! Rectifier and regulator 13.5 at 2500 and 14.8 at 5000 system upgrade tested. And CB750K-LTD models with dual overhead cam engine manual services we provide are on the specifics of what went after! Turn Throttle Tube to go with the fault finding chart it warms up starts up... Specifically the charging system ★★★★★ great prices on in stock items 1979 CB750 Honda DOHC Carb Jet Kit regulator! The rotor is the rotating magnet and the symptoms tend to be the problem... Electromagnet charging system is to use a two meter test unit on the value-for-value model - if you register n't! In or register to reply here gap, valve clearance, and ignition timing a. And 836cc is too tame was not a hands on motorcycle rider and let the Honda. Engine manual symptoms tend to be the biggest problem sensors for both automotive and aftermarket! Dohc Nighthawk More... Series 5 the LED status will indicate voltage regulator or alternator problems and motorcycle. After a sprinty ride, idle hangs at 2-2500 rpm Honda Singles / Twins up to.!

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