1985-1986 Honda Fourtrax 125 TRX125 Shop Manual, Page 123Get this manual
RECOIL STARTER ALTERNATORCAM CHAIN TENSIONER
TENSIONER INSTALLATION
Place the cam chain on the crankshaft sprocketInstall the cam chain tensionerInstall the tensioner set plate with the boltInstall the cam chainInstall the camshaft sprocket and camshaft (page 6-5)Apply grease to the guide sprocket journals-