2004-2006 (2007) Honda TRX400FA Fourtrax Rancher / TRX400FGA Rancher AT GPScape Service Manual, Page 175Get this manual
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CYLINDER HEADVALVECAMSHAFT
INNER VALVE SPRING
STEM SEAL SPRINGSEAT
VALVE GUIDE
EXHAUST VALVE
Blow through the oil passage (stud bolt hole) in