1998-2001 Honda Fourtrax Foreman TRX450S, TRX450ES Factory Service Manual, Page 133Get this manual

1998-2001 Honda Fourtrax Foreman TRX450S, TRX450ES Factory Service Manual, Page 133

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CYLINDER HEAD ICYLINDERPISTON
Replace fl ew O-ri ng on the new va lve guideDrive in the gu ide from the top of the heM using the specia tool as shown
TOOL: Valve ,g uide driver, 5.5 mm