after run in oil to gas?

Bikeguy Joe

Godfather of Motorized Bicycles
Jan 8, 2008
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up north now
If you are running a bushed engine, go with 24-32 to 1. Bearing engines 30-32 to 1.

Also, look at your plug, you may be running with the carb too rich.

Leaning the oil to fuel mixture will richen the fuel to air mixture.