Troubleshooting - Honda TRX680FA Service Manual

FRONT DRIVING MECHANISM
TROUBLESHOOTING
Consistent noise during cruising
• Oil level too low
• Foreign matter contaminating gear oil
• Worn or damaged bearing
• Worn or damaged ring gear and pinion gear
• Deformed ring gear or differential case
• Improper tooth contact between ring gear and pinion gear
Gear noises while running
• Oil level too low
• Foreign matter contaminating gear oil
• Chipped or damaged gears
• Improper tooth contact between ring gear and pinion gear
Gear noise while coasting
• Chipped or damaged gears
Abnormal noises when turning
• Worn or damaged ring gear bearing
• Worn or damaged face cams and cam followers
• Worn or damaged differential housing grooves
• Worn cone spring or shim
Abnormal noises at start or during acceleration
• Excessive backlash between ring gear and pinion gear
• Worn differential splines
• Loose fasteners
• Worn cone spring or shim
Oil leak
• Oil level too high
• Clogged breather
• Damaged seals
• Loose case cover bolt
Overheating
• Oil level too low
• Insufficient backlash between ring gear and pinion gear
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