If your bike has the extra flywheel weight added to the ignition flywheel remove it and see if you have enough torque after its removal. I have a 01 rev 3 with 02 air box updates and I ride it at very high altitude. After a fresh top end rebuild it would not pull second gear up a gentle slope. I believe it has 11/42 chain wheels. To ride this bike at high altitude I had to remove .020 from the head, run the thinnest base gasket that beta recommends, add a v-vorce reed, the next hotter spark plug and remove the clutch side flywheel to get it to run strong enough for riding at 7'k-9'k. I have done the beta clutch mod and the clutch works very well but with the clutch side flywheel removed the low RPM power pulses come through while I am slipping the clutch while creeping through a section. I have considered reinstalling it. I also like how smooth and controllable the engine is while I am attempting a floater with the clutch side FWW installed.