2006-2014 Honda FourTrax ATV TRX250 EX TRX250X Service Manual, Page 126Get this manual
CYLINDER HEADVALVECAMSHAFT Align the bolt holes by turning the shaftInstall the bolts with new sealing washers and tighten themInstall the cylinder head cover (page 8-21)
CYLINDER HEAD REMOVAL
Remove the following:heat protector (page 6-19)exhaust system (page 3-10)air cleaner housing (page 6-5) Place an approved fuel container under the drain hoseLoosen the drain screw and drain the carburetorRelease the carburetor drain hose from the hose guide on the protector cover