1988-1994 Honda TRX300 Fourtrax, 1988, 1990-1994 TRX300FW Fourtrax Service Manual, Page 80Get this manual
CYLINDER HEADVALVES Install the cylinder head cover and tighten the head cover bolts in or steps in criss-cross pattern TORQUES: mm SH bolt: 10 Nm (1.0 kg-m, ft-Ib) mm flange bolt: 12 Nm (1.2 kg"m, ft-Ib) Measure the camshaft journal bearing I.Das shown position SERVICE LIMITS: Left: 20.05 mm (0.789 in) Right: 24.05 mm (0 .947 in) Center: 24.05 mm (0.947 in) (1) LEFT I
(3) RIGHT (2) CENTER
Calculate the camshaft-to-bearing clearance SERVICE LIMITS: Left: 0.10 mm (0.004 in) Right: 0.10 mm (0.004 in) Center: 0.12 mm (0.005 in)
Remove the cam chain tensioner lifter sealing boltDiscard the gasketCheck the lifter operation:the tensioner shaft should not go into the body unless it is pushedwhen it is turned clockwise with screwdriver, the tensioner shaft should be pulled into the bodyThe shaft should spring out of the body as soon as the screwdriver is released CYLINDER HEAD REMOVAL