[jbmsu]

I have a basic scooter rig with a 139QMB 4-Stroke. I rebuilt the engine with new gaskets, CVT clutch & band, variation w/ 6.5g roller weights.

I used the ATMT1-008 Glixal 47mm BBK, and added a cone cold air intake.
The stock carb is 18mm and originally had a 30 pilot jet and a 78 main jet.

The valves were adjusted to .004

More details below.