1995-2000 Honda FourTrax 300 300FW TRX300 TRX300FW TRX service manual., Page 39Get this manual
MAINTENANCE
VALVE CLEARANCE
Ins.pecl and adjllslthe valve clearance wnile the 0Jn9irll!
is cold (below 35CI95 F)
ReT'IOII8 the fIleI lank (page 4-3)
RernNe Ihe onIake an:! eJdausl vaI"v9
Remove the nmlng hole cap TRX300 TR)(3(}()FW"
RIKOOVfI the c,rishall toIe cap