2004-2009 Honda TRX450R/TRX450ER Service Manual, Page 304Get this manual

CRANKCASETRANSMISSIONCRANKSHAFTBALANCER ('04'05) Remove the reed valve from the right crankcase
REED VALVE INSPECTION
Check the reed valve for fatigue or damageCheck the reed valve stopper for cracks, damage or deformationCheck the seat rubber for deterioration or damageVALVE STOPPER

REED VALVE

SEAT RUBBER

• ATV
• Jet Ski
• Outboard Motors
• Personal Watercraft
• Snowmobiles
• Stern Drives