Abnormal driveline noise (Honda XRV750 Africa Twin)

Clutch noise

• Clutch outer drum/friction plate clearance excessive (Chapter 2).
• Loose or damaged clutch pressure plate and/or bolts (Chapter 2).

Transmission noise

• Bearings worn. Also includes the possibility that the shafts are worn. Overhaul the transmission (Chapter 2).
• Gears worn or chipped (Chapter 2).
• Metal chips jammed in gear teeth. Probably pieces from a broken clutch, gear or selector mechanism that were picked up by the gears. This will cause early bearing failure (Chapter 2).
• Engine oil level too low. Causes a whine or howl from transmission. Also affects engine power and clutch operation (Chapter 1).

Final drive noise

• Chain not adjusted properly (Chapter 1).
• Front or rear sprocket loose. Tighten fasteners (Chapter 6).
• Sprockets worn. Renew sprockets (Chapter 6).
• Rear sprocket warped. Renew sprockets (Chapter 6).
• Loose or worn rear wheel or sprocket coupling bearings. Check and replace as needed (Chapter 7).