1986-1987 Honda TRX350 FourTrax 4X4, 1987-1989 TRX350D Foreman 4X4 Service Manual, Page 145Get this manual
CRANKCASECRANKSHAFTTRANSMISSION Turn the inner race of each bearing with your fingerThe bearings should turn smoothly and quietlyAlso check that the bearing outer race fits tightly in the crankcaseRemove and discard the bearings if the races do not turn smoothly, quietly, or if they fit loosely in the crankcase
AFT BEARINGS
(2) COUNTERSHAFT BEARINGS
BEARING REPLACEMENT
Remove the mainshaft bearing from the left crankcase