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Old 05-19-2008, 03:11 PM
cpav13 cpav13 is offline
Motorized Bicycle Newbie
Join Date: May 2008
Posts: 9
Thumbs down How to troubleshoot CDI/Magneto when no spark

Hello all!

This is my first post. I picked up a used motor/bike at a sale this weekend (a King's Motor Bike Kit 80cc? I think), and it was in need of some serious TLC. However, for $15 I wasn't going to pass it up. I've mounted everything properly (which it wasn't before) and took it out for a spin. No spark.

I started at the beginning, taping my volt meter to the lines coming out of the magneto and went for a ride, and got a wide range of voltages (usually 3-4, only occasionally higher. I don't know if that is right. Seemed low, but I'm new to this engine. Additionally, the PO had lost the plug wire, so I bought a standard auto one and a like spark plug. Could my CDI be dead? Does anyone know a good way to check a CDI (ohms metering or something?).

Here's some pics of the new toy! Picasa Web Albums - cory - Chinese Motor...
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