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electrical

  1. S

    Turn signal buzzer ?78 cb750a

    I have a 78 cb750a that my wife loves to ride(thinks its cool) well she looked at the owners manual and it says it has some kind of turn signal buzzer and asked me why she cant hear it? SO now i have to fix it but i cant find it.Does anyone know where it might be. THANKS :laugh:
  2. motogtp

    Shocked!

    The bike quit on me the other day. It did not bog like it had carb issues (solved all those) just quit. Would not restart. Luckily I touched both the tank and the front brake lever while trying to start it and got a BIG shock. I took the tank off in a parking lot and rearranged the spark...
  3. H

    Late ignition timeing 1980 cb750 dohc

    new to the dohc. trying to get it to start and was checking timeing. everything lines up when not turning but when i put a timing light to it the spark is happening about 90 degreas late. checked and reset the gap on the spark generators. checked the omhs reading on the coils and they are a...
  4. S

    Looking for a wiring harness, need help!

    I'm looking for a wiring harness for my 1980 CB750C. Vintagecb750.com has them but no for my exact model (1980 CB750K and F only). I would think that they should be able to be used for the C model as well, but there is a specific message that says "NOTE: These fit model years and type listed...
  5. S

    Stalling kills battery?

    Hey there! I'm new to cycling and fixed up (for the most) an '82 CB750c, in part from lurking on this site, so thank you all for the assistance you all have already provided! I have mostly just been doing drills in a parking lot and am getting pretty confidant. However every once in a while I...
  6. Stone Blue

    finding running light wire

    I have a 1978 cb750k i am trying to work out a tail light issue the brake light works fine but no running light i have a wiring diagram. my question is if the brown wire is for the tail light/running light. and according to the diagram it goes to the combination switch. where is this switch...
  7. J

    New Gauges

    Hey everyone. I recently obtained an 81 CB750C. I'm having some speedometer issues. From doing some research I've found that these old bikes are usually off by about 10 or so mph. However mine was layed down by the PO. When I check my speedometer against a GPS it starts off 5mph low and then...
  8. T

    another charging question

    hello everyone, need some guidance on my newly acquired 1977 cb750 that has a charging problem. Short story, it is not creating enough voltage. Here are the facts stator looks pretty new and in good condition battery is most likely only a year old dyna ignition Ricks reg/rectifier key off...
  9. T

    another charging question

    Hey everyone, quick question. I seem to be having some issues with my charging system on my newly acquired 1977 cb750. It doesn't produce enough voltage while running. Here are the facts; Key off, 12.2v (I understand this is on the lower end, battery seems to be a year or two old) Key on, 11.3v...
  10. Stone Blue

    tail light problems

    I have a 1978 honda cb750k. I have been doing a cafe style build but i have ran into a problem with the tail light. with the key on lights work correctly except for the no running light. i press the brake handle and the brake light comes on like it should but that its. when i turn the key to...
  11. Crabnab

    Neutral Indicator always on (even with new switch)

    Bought a '76 CB750F from a guy who had done most of the restoration work. It's marginal work but the bike looks great and runs pretty well as well. Just minor things remain. One of those things is a Neutral Indicator that is always on, regardless of Neutral or In-Gear. Seller claimed it just...
  12. O

    CHARGING or NOT CHARGING, Please help!

    Key off-12.8 Volts Key On-12.5 and dropping. Will not start with the electronic starter. Kickstart-Yes. Charges to 13.66 Volts after 45 seconds at 4K RPM Charging or not charging? Do you think its the stator? Ive replaced the thing several times. I've also replaced the Regulator Rectifier and...
  13. R

    new rectifier/regulator

    ok people help me out here !!!!! I have installed a new rectifier/regulator combo into a 1972 cb 750 with an after-market wire harness. here is the question folks; with the key "OFF"? should I be getting power through the red wire in the rectifier ? OR WILL i ONLY HAVE POWER GOING THROUGH IT...
  14. R

    wiring spagetti

    ok; i think i must be close but just a few issues left. 1972 cb 750 should there be power to the rectifier combo when the key is OFF? all lights are finally working as they should but i have NO SPARK!! continuity thru the coils ; pulled 2 opposite plugs and cranked it over with key on but no...
  15. R

    rec tifier regulator combo wiring

    question guy's ; i am trying to wire in a new rectifier regulator combo into an after-market wiring harness if the key is in the off position should there be power feeding the combo unit?? with the key ON and the engine NOT running should there be power feeding into the combo unit?? seems to...
  16. R

    inherited a nightmare

    1972 k2 sohc cb 750 SOMEBODY had electrical problems with this bike and decided to RIP the harness out since they were going to replace it. duh!!! they bought a NEW aftermarket harness and regulator-rectifier combo-so far so good-sort of. trying to find a wiring diagram that matches the harness...
  17. B

    Looking for an alternator rotor bolt puller for a 1980 CB750k in New Haven CT area!

    My road trip is being seriously delayed because of electrical problems. Is there anyone in this area that can sell or lend me a flywheel puller for a couple hours so I don't have to wait until the end of the week to have one shipped? Would be greatly appreciated!
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