As for the testing, i got good roodings all the way through. The rotor is the rotating magnet and the stator is the stationary coil of wire. 12V Regulator Rectifier - Single Phase Charging System - Honda Singles / Twins up to 1978. This time I’m upgrading to the cycle x charging system. Carbs rebuilt, charging system good, advance spark is not sloppy or sticking. 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. The Dyna Charge Monitor is a valuable addition to vehicles with a battery ignition and a charge system as … #30203-300-154 FREE SHIPPING ... 1979-82 Classic CB750 CB750 DOHC More... Series 3. The weakest point of a Yamaha XS650 is the charging system. That is all dead on with the fault finding chart. I have a 1982 Honda CB 900F. I found this over at cycle x. 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. CB750 and CB900 DOHC. 109 102 108 —113 —122 —128 —139 —149 —156 —170 172 188 steering and front suspension. The "proper" way to test a charging system is to use a two meter test. Is it truly the charging system or just a run of shite batteries? The two primary parts are the rotor and the stator. I have an 81 with 9000 miles on it. How to adjust the point gap, valve clearance, and ignition timing on a Honda CB750 CB750 … You must log in or register to reply here. We have a bike in the shop that has all the new rewound stator and regulator upgrades and it still has problems. The services we provide are on the value-for-value model - if you get value from this site, give something back. You are using an out of date browser. Looks like the the r/r is toast. Includes Color Wiring Diagrams. The most important tool in your tool box may be your Clymer … Voltage drops when reving. The third charging system part is the rectifier. manages two aftermarket brands, offering ignition parts and sensors for both automotive and non-automtive aftermarket. 31; Buy It Now Save cb750 fuel line to get e-mail alerts and updates on your eBay Feed. Many older vehicles, such as your Honda, relied on older field-excited charging circuits that utilized a separate rectifier and regulator. Check out this page to learn how to sync the carbs on these motorcycles. It's the charging system. Honda CB750, 900 DOHC carburetors can be a pain if air filter pods or exhaust system changes are made. Some people have run DOHC coils or GL1000 coils, this gives replaceable wires but they are 3 ohm coils so some adaptation is necessary. One of these would do you well. Fuel injections system upgrade Engines tested and tune in test bike before delivery; CB 750 SOHC 915cc-1050cc engines. He was not a hands on motorcycle rider and let the local Honda dealer sort out the issue. It may not display this or other websites correctly. The weakest point of a Yamaha XS650 is the charging system. * CB750 DOHC Mikuni Carb System - VM34 quantity. The rotor is the rotating magnet and the stator is the stationary coil of wire. After a sprinty ride, idle hangs at 2-2500 rpm. cheers Geoff It is just a matter of time before one or more of the components are going to fail you and leave you stranded. Many people try jetting their bikes by just changing main or pilot jets with know real progress. Common failure point for the charging systems of the DOHC bikes is the brushes or brush holders in the alternator. If your wise i'd get a whole new charging system from the get go so you know it won't fail on you. 79-83 Honda DOHC charging system help. 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 Basics The Four Parts The SOHC’s electromagnet charging system has just four major parts. It is just a matter of time before one or more of the components are going to fail you and leave you stranded. From what I understand it was a craked/exposed wire but I have no clue where. * CB750 DOHC Mikuni Carb System - VM34 quantity. In order to enjoy all the features of CB750.com, please enable JavaScript in your web browser. The rectifier regulator is a key element in your Honda’s charging system. 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. Honda DOHC Carb Jet Kit. Automotive Voltmeters (VM) will run anywhere from $10-$50. Charging system went out the day before lol. I've gone through 2 stators a regulator and 2 batteries. Logged MATT current bikes: 1976 CB750F, 1981 GS1100E We sell OE or better quality regulator and rectifiers for the electrical charging system of your Honda Yamaha Kawasaki and Suzuki motorcycle. Sounds pretty tempting. Many older vehicles, such as your Honda, relied on older field-excited charging circuits that utilized a separate rectifier and regulator. rear suspension.. wheels, tires and final drive brakes 115 123 129 141 cb750 cb750k1 cb750k2 cb750k3 c,b750k4 cb750k5 cb750f cb750f1 cb750k6 We sell OE or better quality regulator and rectifiers for the electrical charging system of your Honda Yamaha Kawasaki and Suzuki motorcycle. 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 As a guest you can view the forum and photo galleries, but you have to register before you can post or view attachments. Do you want a Quick Turn Throttle Tube to go with the carb set? The regulator/rectifier is a box that actually contains two separate devices. Well let's take a look. As a guest you can view the forum and photo galleries, but you have to register before you can post or view attachments. From basic maintenance to troubleshooting to complete overhaul, Clymer manuals provide the information you need. 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. Any feedback is VERY much appreciated. Clymer motorcycle repair manuals are written specifically for the do-it-yourself enthusiast. Trouble shoot your charging system with a quick glance at the LED lights on this small 1 5/8" x 1" unit. Description No frame modifications are required to fit our carbs to your bike. Here is a jet kit to help with your Honda project bike. Stock airbox and Mac 4-1 exhaust. The good news is: I was packing to take a trip last weekend. Set the valve clearance. level 1. Scroll down to see our selection. 1980-07 CB900 DOHC CB1000 DOHC CB1100 DOHC More... Series 5. 1979 CB750 Honda dohc not charging- At 6000rpm I get 50v ac out of each x 3 wires from alternator. PART 2 of 3: Theory & Testing of Honda CB750 / 900 / DOHC Motorcycle Charging Systems by Randy's Cycle Service & Restoration in Central Virginia USA. the starter does drag, thats what i mean by weak start. 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 I've owned a 79 DOHC for 2 years. SKU: VM34-KIT-CB750-DOHC Categories: Honda Carb Kits, Honda DOHC. Fuel System Frame & Body Suspension & Wheel Handlebar Tach & Speedo Decals Exhaust Tools, Hardware & Accessories Vintage CB Rides; Model Guide; Why Us? JavaScript is disabled. Put the multi meter on it today, with a fresh battery. We sell universal and direct replacement units for vintage and modern motorcycles. Most orders ship the same day at Niche Cycle Supply | Call us 727-342-5601 Set the point gap. CB750-K8 1978 750 750 Four Street Part #: CB-70083 $7.95 ea Honda CB750 LH Ignition Contact Points - CB750, CB550, CB500 OEM Ref. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. CB750 DOHC Mikuni Carb System – VM34 $ 609.00. The problem: Hanging idle. I've had both and the symptoms tend to be the same or similar. I have just fitted new reg/rec and still no charging. Electrically a solder job should work. This time I’m upgrading to the cycle x charging system. Set the ignition timing. 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. The third charging system part is the rectifier. 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