Hi ive got a 99 kawasaki kmx 125, ive got this problem when i rev the engine all the lights go dim or dont work, when engine is at idle they all work fine.
Ive checked the generator output which seems fine, but when i checked voltage at battery end the voltage also drops when i rev the engine.
Please can any one help
I had the same issue, and it after lots of testing and measuring, found out it was only that 'earth' wire that you have at the bottom left part of the engine, coming out from the left engine cover. You will find it easily, it's a standalone wire, mine had its sleeve too dry, might have been why it was not well connected. It also had a mix of sand and oil in it, so no wonder the lights would dim out. The wire plugs into some sort of a screw, you really can't miss it :) Even the old, worn sounding Yuasa battery got back to perfect function, only added distilled water to it and let it run fro some time. Cheers:)
Check the dyno
My solution.: change rectifier/reguletor module
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IVE CHECKED THE OUTPUT AT THE DYNO/ GENERATOR END VOLTAGE FINE ON ALL THREE OF THE YELLOW OUTPUT CABLES AND INCREASES WITH THE REVS, THE PROBLEM SEEMS TO BE BEYOND THIS POINT.
i have the same problem in my kmx, ang i solved chamging the rectifier/regulator module
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