1998-2001 Honda Fourtrax Foreman TRX450S, TRX450ES Factory Service Manual, Page 146Get this manual
CYLINUER HEADICYLINDERI ISTON P
, AMSHAFTlCAM CHAIN TENSI'ONER C
CAMSHAFT REMOVAL
Remove the foll owing:Cyr1nder head (page 7-4)'Cy linder (page 7-16)Centrrfugal clutch and change clutch (section 8) Remove the cam followe rsMark he cam fonowers so they can be reinstalled in their original positionsJ' '
CAM FOLLOWERS
Turn tl,e cam chain tensioner lifter shaft clockwise fully and seCllre it with stopper toolr :his too can easI ly be made from thi {1 mm of piece of steell as shown below