1985-1986 Honda Fourtrax 125 TRX125 Shop Manual, Page 130Get this manual
SUBTRANSMISSION BEARING REPLACEMENT Sub-transmission coyer bearings: Remove the bearings with bearing remover; use the tools shown to remolle the transmission shaft bearingsUse the 12 mm Bearing Remover, 07936-1660100 to remove the shift drum bearingBEARING REMOVER, 15
BEARING REMOVER WE GHT 07936-3710200
BEARING
DRIVER,07749-001Oooo
Drive the bearing into the sub-transmission cover