electrical

i have downloded a pdf of a 1982 honda nighthawk 750 sc manual for the electrical diagram. i cant enlarge the diagram enough to make it out clearly or print it . would someone be willing to send ma a picture of the wiring diagram or have a clear copy i can get from them . i think you can...

Hi All looking for a set of clocks for a K0 and K1 or where can i go to purchase. thx

Hi everyone, I bought a CB750 and restoring it. I don’t know a lot about motorcycles but it seemed a worthwhile project. I am looking at the ignition system and the one on mine doesn’t look like any other I have seen. Don’t know if I have inherited a Frankenstein bike but I have seen the bike...

Hello, Let me start out by saying electronics are my weak point. With that out of the way. Can anyone explain to me what these two small silver components named mc-5194 nec do? Was also curious if an m-unit would replace these components. Thank you.

Hi there. I bought a basket case DOHC CB750K from 1979 It died on me in the middle of the road after warming up. (45 minutes into the ride bringing it home) lights flickering and everything. I replaced the regulator and new battery. Bike ran for 45 minutes. Then I turned it off. Then rode for...

So I don't have a spark at the plugs. I've worked my way back from the plugs, leads, and coils all seem to be good. I figured the gap or timing got out of sync. So I gapped the points and went to do the timing. The test light won't come on when doing the 1-4 point. So I go to move the plate back...

Im trying to install aftermarket headlight and speedometer but cannot figure out the wiring any help appreciated 1979cb750k

So j I’m have an 81 cb750 K. The wiring had been hacked into pretty bad. I was jus about done spring it when I had a short than ha smoked the coils so I thought and still think. So I put mew oils on an new plug wires and plugs just because. It had no spark prior to this and mow a weak spark kn...

I installed a moto gadget M.Unit in my ‘78 Honda CB750K, and have everything wired up but not getting a spark. The starter motor is activated and turning over, but still can’t see a spark. I verified the ignition coils are getting 12v power from the B/w wire, continuity through, and power out of...

Hi guys, anyone can tell me in few words what is the role of the silicone rectifier? I see it is connected to the neutral switch but I cannot figure out why you need a diode there. My bike is completely dead (I mean with the ignition switch on I don't have any lights on board), but if I take...

have a 75 cb 750 F and a 74 k wiring harness everything works except the points do not fire all the time. I had it running long enough to set the idle and now the points fire on first rotation and then not....new coils and wires and plug caps. continuity through wires check out...battery...

Will a stator from a cb 900 work in my cb 750.? Look ever simular.

Like I have read about people having no running lights while being in the on position but have them in the park position with the key. I read that there are two brown wires at the ignition that became un soldered and I can’t figure out what ignition he was talking about? Are they at the key or...

I’m doing a complete rewire of my 1978 cb750 and I just wanted a little confirmation on wiring my alternator. I ran the three yellow wires to my reg/rec but the are two other wires a green and white. am I correct in that they are for the field coil and need to be wired to a switched positive and...

Can someone show me a Pic of the inside of a Headlight Bucket wiring harness .And how everything fits in place.On a 1981 Honda CB 750 K. ? Thks Keith,.,

Hello, my name is Edgar, How are you all doing? So, I have a 1980 CB 750 costume. I started having issues with it last year and since then I have replaced the voltage rectifier, the rotor, the stator generator, the carbon brushes and The battery. I googled it for issues with it and it’ll say to...

Am attempting to install a new wiring harness in a 1970 CB750 but am way over my head. Does anyone know of a good cycle electrical shop that would do the job in the Philadelphia area? Have tried to get NAMZ in Orland PA to do it but they are booked for months.

I bought three CB 750 Hondas. The one I am working on first has a build date of 6/72. Vin starts with 20462.. Does anyone know if the ignition sub wiring has the round plug ? The wiring is butchered on this bile and it only has one fuse. I need to get a harness and want to get the correct one.

Hi all, I'm having trouble getting the ignition timing correct on my '81 CB750C. It's firing way too early but I cannot retard it any further since I've turned the plate all the way already. What other adjustments can I make to resolve this? Thanks. Video of it running...

I have done everything I’ve been told, I have a new rotor, new stator, when I start it I don’t get any AC Volts. The brushes are making contact WTH???? Any ideas

Dismantled this bike to restore while reinstalling the left and right signals have 3 wires each brake light also 3 wires the main harness to the back only has enough plugs in for a total of 6 I was sure I unplugged all wires but now can't figure out what plugs into what could some one check...

Acquired a super clean, low mileage 79 750F a few years back. It ran only sporadically ...and I parked it. Then I got the bug again ...and recently discovered that the CDI boxes were both cooked from overheating. Any ideas as to what the culprit might be? Thanks so much for any help.

A while back my Honda 750 stranded me about a mile from my house. So the first thing I did was try to determine if I had a Elec. problem or a mechanical, and it had a blown main 15 amp fuse on the main harness. I must had done everything I could and started to buy a main wiring harness when I...

Hae a 80 cb 750 c with all kinds of electrical issues. have work through some and am now at...turn key on with neutral and oil light not on...puck starter button o and they light up..doesnt start but ...i can push button and put in gear and neutral light will go out...have checked the rightsize...

have 1980 750 C...got it o the point of checking wiring, hooked up battery and neutral light and oil light came on with no key in ignition. have been through about every wire and tested. what i know is that power is running through the ground system.. power at starter solenoid and one side of...

Hi all, I am putting a new tail light on my 1981 CB750c. The new tail light is two incandescent bulbs with a single wire going to each of them (see pics). The top bulb is the stop light and the bottom is the running/plate light. I connected the green+yellow brake light wire to one bulb and my...

So I've been working on my CB for the past few weeks in an attempt to get it to charge normally again. I've had it for 2 years, and for about 1.5 of those years, I had no issues. Now I'm stuck. Main issue - AGM Battery at 12.6vDC when off. At idle Voltage sits at around 12.0vDC. Revved up to...

Hi all! I am still rebuilding my CB750 ‘79 kz DOHC. DNA air pods with 4 in 1 exhaust with open muffler. He runs ok and starts emmediatly (with a bit of choke). But when running I can hear he is skipping some strokes. Now I did the timing with a timing light on the cable of spark plug cyl1. ( the...

Got a 80 cb 750 and finely got to a point to hook battery up and dur some investigation. As soon as the positive cable made contact..green neutral light came on..with no key..pushed starter buttom and red oil light came on..where to start. Did replaced the part under the key holder and that...

I just bought a 1982 CB750SC. It started and ran fine when I bought it. Brought it home and it stalled after running 10 mins or so, with loss off power with the ignition switch on. After 20 mins it would just came back. It has done this about 3-4 times. New, battery, new igintion switch. Don't...