1985-1986 Honda Fourtrax 125 TRX125 Shop Manual, Page 71Get this manual
CYLINDER HEADIVALVES
Install the pulse generator cover and tighten the two
screwsConnect the pulse generator coupler to the wire harnessInstall the pulse generator wire ctamp to the cyl
CAMCHAIN TENSIONER INSTALLATION
Install the push rod, tensioner springsealing bolt and washerRemove the oil hole bot PUSH ROO
Fill the cam chain tensioner push rod with the recommended oil throogh the bolt hole until it flows back outInstall the oil hole bolt