2001-2006 Honda TRX 300EX Sportrax 300EX Factory Service Manual, Page 116Get this manual
CYLINDER HEADVALVES
new vaV8 guld8s are Installed
RefttC6 vaMt
II the stem-la-guide clearance 8kcaeds the service limit, determine if new guide with standa rd dimensions would bring the clea rance within tole ranceIf so, replace the guides as necessary and ream them to fit If stem-Io-guide clearance still 8)(ceeds the service limilafter Ihe new guides are instalLed, replace the
INSIDE MII:RClMI'I"R
VALVE GUIDE REPLACEMENT
Do not use orch to heat the cylinder head; it may cause warpingDo
VALVEGUIDEAEt"" VER ,
flO' damage
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