OK so im new at this. I pulled the compensator and primary to change the starter pinion gear. had some trouble getting the clutch adjusted using the manual. the problem seemed to be the ramp on the opposite side of the trans was stuck. I took it out for a shakedown run (about 20 minutes) and it ran great until a 1-2 shift. clutch seems to slip. the engine revs but the bike does not move forward in any gear 1-4. there was no abnormal noise of any kind, motor running or not. I pulled the primary cover and verified the clutch rotates when the engine is running. When I squeeze the handle the clutch hub moves. I pulled the primary all apart again, and noticed the input shaft does not spin in gears 1-4 with any load on the input shaft. however in fifth gear while spinning the tire by hand the input shaft turns as designed.