D
Deleted member 12676
Guest
It looks like you may be stuck with having to modify a 69cc (called 80cc) Grubee 2 stroke to get the reliability and power you want. Needed:
lighter wrist pin for less vibration at low rpm
Jaguar CDI for less vibration at high rpm
more compression by sanding down the head
better upper connecting rod bearing
better carburetor jetted to perfection
extended intake tract for more low rpm power
very slight porting changes for better power and powerband
crank seals from Rock Solid Engines
lighter wrist pin for less vibration at low rpm
Jaguar CDI for less vibration at high rpm
more compression by sanding down the head
better upper connecting rod bearing
better carburetor jetted to perfection
extended intake tract for more low rpm power
very slight porting changes for better power and powerband
crank seals from Rock Solid Engines