1986-1989 Honda TRX250 FourTrax 250R Service Manual, Page 102Get this manual
TRANSMISSIONCRANKSHAFT Install the shift drum and shift forksCAUTION
Install the shitforks with their marks facing the left crankcase
Slide the shift fork shafts through the shift forks, and into the crankcas eA ft er installi ng, check for smooth operationAssemble the crankcase (page 8-11)
CRANKSHAFT
REMOVAL
Separate th crankcase (page 8-3) Remove the transmission (page 8-3)Remove the crankshaft from the left crankcase using hydraulic pressRemove th left crankshaft oil seal