magneto help please

[mr.one216]

I am very new and have already drop a ton of money on this bike. My magneto keeps going out and this will be the3rd one I have replaced. Please I need help with this. And whats funny about this is the 12volt side is still producing power but the blue wiring is not. I have a brand new gasket... I don't know what else to do. Please someone help me.

 

[crassius]

if this is the standard 2-stroke HT motor, you should never use the white wire for anything - cut it off and tape the end so it doesn't short out

search the board here about using an ohm meter to test your blue wire and also about the ground connection at the top of the coil that sometimes needs to be re-soldered

 

[BigBlue]

I am assuming magneto is the magneto coil. If your computer can read Google Docs, here's a good troubleshooting guide: https://docs.google.com/document/d/1aBeJuoS--VQWwXysc07rpscTUbPzgc93xjiQBgsyFjc/edit

If you ride the bike in the rain or it gets wet, it is a possibility that the magneto coil is getting rusted and causing you problems.

Here's a guide that shows you where the coil solder connections are and some ohm readings for the magneto coil: http://www.grubeeinc.com/USA/Magneto Mystery.html

Good Luck,

Chris
AKA: BigBlue