[ngoma]

Sorry, Flash not working for me so no youtube.

Reattaching the governor spring cage lever to the rest of the mechanism when replacing the IP top cover is difficult and finicky. One time I thought I had it correct but must have bent something when tightening down the cover and subsequently caused the mechanism to bind and eventually break one of the arms of the spring cage, causing a start issue like you are having. It didn't want to start, and when it finally would catch, would immediately die.

Another possible issue is inadvertently changing the clocking position of the exterior throttle lever on its splined shaft during reassembly. Even one spline off can cause all kinds of no-start/idle/off-idle/high idle issues.