1985-1987 Honda TRX 250 Fourtrax 250 Service Manual, Page 71Get this manual
CYLINDER HEADV ALVES Align the spring hook with the groove in the cover and install(1) "''0"'"
Screw in the adjuster all the way through the hole in the cover and install the tensioner lifter onto the cylinderTighten the two tensioner lifter mount bolt and release the adjuster
Install the sealing bolt
TORQUE- 12 N-m (0.81.2 kg-m- -Ib)