Bicycle Engine Sputter

Bikeguy Joe

Godfather of Motorized Bicycles
Jan 8, 2008
11,843
237
63
up north now
Yours is running too rich.

Clean the air filter element.
Clean/replace the plug.
If those two things don't get you going right, then move the "C" clip on the jet needle UP one notch.

The CDI wire just unscrews from the CDI.