1998-2004 Honda Foreman 450 factory service manual, Page 212Get this manual
CRANKSHAFT BALANCERTRANSMISSION
TROUBLESHOOTING
Crankshaft noisy Worn connecting rod big end bearing Bent connecting rod Worn crankshaft bearing Transmission jumps out of gear Shift fork bent or damaged Shift fork shaft bent Shift fork claw bent Gear engagement dogs or slots worn Hard to shift Incorrect clutch adjustment Shift fork bent or damaged Shift fork shaft bent