1985-1986 Honda Fourtrax 125 TRX125 Shop Manual, Page 120Get this manual
RECOIL STARTERALTERNATORCAM CHAIN TENSIONER GASKET
Install the dowel pins and new gasket onto the left crankcase
Install the left crankcase cOlier spacer and tighten
it with the seven bolts
Connect the neutral switch wire to the switch
STARTER DRIVEN GEAR SPACER