vibration on acceleration and noisy moter..

[henkediesel01]

1997 GTI rotax motor runs 40 mph top end..that's slow..compared to another bike of same brand year and model..what is a common problems with sea doo props?

 

[Dr Honda]

Is the engine reving up?

If it is... I would look for a bent driveshaft, or bad bearings in the pump housing.

 

[henkediesel01]

engine revs well ..on land...motor shakes hard enough to break a bolt on the exhaust...possible bent drive shaft..impeller seems fine..I will remove drive shaft and check for balance..and replace bearings