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Reg/Rec to m-unit

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Dangerousdave999:
Okay so im wiring the m-unit and the reg/rec and I'm getting a bit confused which wires go where!

From the reg/rec I have my green and three yellows on the gen.

A red for charge to the battery which is usually connected through the starter solenoid post.

Then a black which goes to my stater magnetic switch.
But where..
The negative pole where the starter motor is connected?

Thanks
David

JustcallmeMrT:
I'll be watching so I know when I wire mine... A ways off yet. 

Dangerousdave999:
Im 90% sure the black goes to the starter solenoid.

But saw someone else who put it to the lock terminal on the m-unit.  :o

Dangerousdave999:
Most confusing bit is my Starter solenoid has a Yellow/Red for the start button.
But the starter has a Green/Red as well and in the diagram its a Black wire.
So maybe I connect to that instead as that wire connects to the old regulator.

Lobo:
Dave,

You don't state your bike.... assume its a good old 70's Honda?

On these bikes the black wire is an ignition switched live.... ie will be +12v, but only when the ignition is on.

It'll feed many things.... juice to (somewhere) in the starter circuit, the indicator switches, to the brake light switch, the horn circuit... and so on. It'll also supply 12v to the regulator.... which I (think) is your question. So, (and assuming your harness spec) connect this rec/reg black to any black on the Honda. (wouldn't be a bad idea to check first though the bike black is indeed 12v + at ignition ON)

The Hondas were often wired differently, according to model / market & year. Eg on some the stater magnetic switch was earthed by the start button.... and on others it was fed +12v by the start button.
If your bike is the former... then it'll have a nice ignition switched 12v+ to it ... ie that black wire. (magnetic switch connectors likely BLACK & hatched RED/YELLOW)
If your bike is the latter it may have a continuous striped RED/YELLOW to one side of the starter magnetic switch (12V+ from start button) and GREEN off to the clutch switch interlock.

But you mention a GREEN/RED. The only Green/Red wires I can find are to do with the neutral light... and it's entirely plausible your particular Honda uses this as a start interlock. (I don't have such wiring diagrams) ... In which case neither of the starter magnetic connections will do.. Ie you need to find that BLACK.

Finally, it sounds to me that your using the wrong wiring diagram for you particular bike.  It's bloody frustrating... been there.
With respect to the m-unit I've no idea.. but did find the below.

Treat all I say with caution... I'm no Honda expert! And I say again, no idea about m-units.

Cheers,
Simon

http://www.dotheton.com/forum/index.php?PHPSESSID=vlu8o2hqkhcfght58h8e930bu3&topic=51398.0

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