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Teds new project a CB500 K1 mostly version 0.5 circa 1972.
McCabe-Thiele (Ted):
--- Quote from: Bryanj on September 02, 2023, 01:38:00 PM ---How many wires to the starter button in the switch Ted
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The switch itself has a live Yellow/Red trace that when you depress the button connects to a black wire out of the loom with a male end.
Oddjob:
The problem Ted is your trying to marry up 550 switchgear with a 500 loom and that's not going to be a doddle.
First of all the yellow/red is supposed to be earthed by the starter button on the 500, on the 550 it's a different arrangement as the 550 has a clutch switch and sensor so the starter solenoid won't work if the bikes not in neutral or the clutch isn't pulled in. You haven't got the wiring for that. On the 550 the yellow/red connects to a green/red when the button is pressed.
You also seem to have a yellow/black connected to 2 blacks for some reason, yet there is a female yellow/black up near the top connected to something else, what's that about.
What does the black/blue wire connect to in the switchgear? I have a sneaky idea that's the power source for the headlight flasher and horn, try testing to see if there is continuity between the blue and the black/blue when the pass switch is operated and also light green to black/blue when the horn is pressed If so that wire goes to the black connectors in the loom..
McCabe-Thiele (Ted):
--- Quote from: Oddjob on September 02, 2023, 03:34:53 PM ---The problem Ted is your trying to marry up 550 switchgear with a 500 loom and that's not going to be a doddle.
First of all the yellow/red is supposed to be earthed by the starter button on the 500, on the 550 it's a different arrangement as the 550 has a clutch switch and sensor so the starter solenoid won't work if the bikes not in neutral or the clutch isn't pulled in. You haven't got the wiring for that. On the 550 the yellow/red connects to a green/red when the button is pressed.
You also seem to have a yellow/black connected to 2 blacks for some reason, yet there is a female yellow/black up near the top connected to something else, what's that about.
What does the black/blue wire connect to in the switchgear? I have a sneaky idea that's the power source for the headlight flasher and horn, try testing to see if there is continuity between the blue and the black/blue when the pass switch is operated and also light green to black/blue when the horn is pressed If so that wire goes to the black connectors in the loom..
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I have some connections that have no colour logic but work - it's certainly not completely finished as yet.
I have a black live double connector on the loom end connected to a single Black/Yellow trace wire from the right side light switch - this made the sidelights & instrument lights work as they should when ignition is on.
I have a temporary bridge between the left switch - male Black/Yellow trace connected to right switch - Black/Red trace, This made the headlamp position on the right handlebar switch work, main & dip work on the left handlebar switch.
I have an unused black male wire on the right side handlebar switch - this is probably related to the kill switch?
I need to check the solenoid connections again, if it's just a matter of earthing the starter button I have a spare black wire on the right side switch that I can connect to earth but at the moment pretty sure that would blow the fuse as the Yellow/Red trace is live & reads a good 12 volts.
As you have mentioned there is a "Spare" Black/Blue trace wire on the left side switch as yet unused.
My switch gear came from Germany listed as follows - CB 400 500 K2 550 750K3-K6 Four
McCabe-Thiele (Ted):
Short update Bryan - I've connected the spare black from the right side switch to earth & solenoid now clicks - starter motor lead not connected at the moment. I've wrapped the black with earth coloured tape.
Bryanj:
You would be better connecting the black to black power, the yelloe/red to yellow/red and at the solenoid the small wire that DOES NOT connect to yellow red is connected to an earth(green).
That keeps everything in the shell colour to colour for next time and only the solenoid, which is rarely looked at, different to standard
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