Yeh I already tried that. The actual cable is too short for the outer sheaths after the split to 2 cables
I'm a bit mystified by the lights. The wiring diagram I have has a white cable going to the rear light and it goes from there to the ignition switch and to the front pilot light, can't see how it could ever be powered from the light switch. It lights up fine when the ignition switch is in the park position.
Second mystery - I have a 3 position light switch on the headlamp, but only one position does anything - what's it supposed to do in each of the three positions? At the moment if I turn it towards the right (looking while sat on the bike) the headlamp comes on and the dimmer works ok (nothing in the middle position, dip at the bottom, main at the top). Nothing at all for the other two positions.
1964 CB72
I don't know about the three position switch on headlight bucket. The bar switch has high and low beam, and if you put it in the middle, headlight will go out, but charging will increase to battery, an old timers trick. The tail light should come on with the headlight, so you may have some wire tracing to do to figure out why it isn't.
davomoto Headlight switchHere's the answer to your headlight switch question, compliments of our Spain-residing buddy e3steve who answered this question for me awhile back (thanks again, Steve!).
The main lighting switch in the bucket itself works as follows: Centre - OFF ACW - parking lights only, no change in charge rate CW - lighting now controlled via the dimmer switch, but with a compensatory boost in charging to offset the extra current required for the headlight
headlight wiringHope I get this right, it mystified me at first...black wire with white tracer takes power from ignition (combination) switch to headlight switch when ignition switch is "on." Then, with headlight switch on, green wire from headlight switch sends power back to ignition switch which sends it to white going to tailight. With ignition switch in "park" position, all the way clockwise, it sends power to tailight only. So problem may be that ignition switch is not connecting green to white when in "on" position. My bike had similar problem, intermittent, drove me crazy, solved by exercising ignition switch, turning back and forth many times, to hopefully scrape crud off contacts. Eventually it all worked consistently. You could check this by testing continuity between green and white terminals on ignition switch (battery disconnected) or with battery connected, ignition and headlight switches on, see if you get voltage between green terminal on ignition switch and ground (to prove headlight switch is working), then between white terminal on ignition switch and ground to show it's getting power to tailight. Hope this helps. Your bike is looking great, by the way. --Lee
Last edited by jleewebb on Sat May 30, 2009 8:34 am, edited 1 time in total.
'62 CB77. "It's a rider."
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