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ty175 wiring

Posted: Thu Jun 26, 2003 4:01 pm
by JamesMcGee
I have a mid 70s Yamaha TY 175 engine, 3 wires from the engine, black, yellow, yellow with red. Im putting the motor in a custom chassis, The coil has 1 black lead. so Im not sure how to wire it up. Any suggestions?
Thanks! :roll:

ty 175 wiring

Posted: Sat Jul 12, 2003 8:44 pm
by scura
On the original bike the headlight (yellow wire) only ran with the engine running and the other (yellow/red) wire gives a small constant trickle charge to the battery (6v). The remaining (black) wire goes to the HT Coil to make the spark. All this is presuming you have a "points" type ignition.
If you dont want to run any lighting, then just leave both the other wires disconnected.
Hope this helps. :wink: