2 stroke 40 qmb bbk

[wingnut82]

does engine have to be removed to install a bbk?

40qmb minarelli engine

[90GTVert]

:welcome:

Depends on the scoot. It usually doesn't have to be removed for a BBK, but on some scooters it's just way easier to take the engine out. If you've got a large frame scoot, it's not too bad most of the time with the engine in. Small frame scooters I always remove the engine.

Here's a how-to for a BBK install showing a scoot where the engine was not removed...
49ccscoot.proboards.com/index.cgi?board=yamajog&action=display&thread=556