1997-2001 Honda TRX250 Fourtrax Recon Service Manual, Page 188Get this manual
CRANKSHAFT ITRANSMISSION ASSEMBL YINSTALLA TION NOTE :
Apply oil to the shifter gear grooves Always install the thrust washers and snap rings with the chamfered (roiled) edge facing away from the thrust loadAfter installing the snap ring, slightly open the ring and rotate it in its groove to be sure it is ful ly seatedDo not use worn snap ring which could easily spinning in the grooveThey may be too loose to proper ly seat in the groove Al ign the gap in the snap ring with the groove of spline Align the oil holes on the shafts and bushings The countershaft must be installed with the insid oil feed hole to the back, and the outside oil holes to the front as shown