2005-2011 Honda FourTrax Foreman TRX500 FE/FPE/FM/FPM/TM Service Manual, Page 344Get this manual
FRONT DRIVING MECHANISM (Except TM model)
TROUBLESHOOTING
Consistent noise during cruis ing
Oil level too low Foreign matter contaminating gear oil Worn or damaged bearing Worn or damaged ring gear and pinion gea Deformed ring gear or differential case Improper tooth contact between ring gear and pinion gear
Gear noises while running Oil level too low Foreign maner contaminating gear oil Chipped or damaged gears Improper tooth contact between ing gear and inion gear
Gear noises while coasting
Damaged or chipped gears