1993-2000 Honda TRX300EX Service Manual, Page 111Get this manual
CrankshaftfTransmission InstaU the left crankcase over the crankshaft and balancer shaftInstall the threaded adaptor onto the crankshaft
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Threaded adaptor
07965VM00300
Set the assembly collar onto the crankshaft bearing inner raceScrew the shaft puller on the thread adaptorDraw the crankshaft in the left crankcase until the crankshaft seats on the bearing inner race by turning the shaft puller while holding flange bolt