1999-2002 TRX400EX Fourtrax Service Manual, Page 156Get this manual
CRANKCASETRANSMISSIONCRANKSHAFT Remove the mainshaft bearing using the special toolsTOOLS: Mainshaft bearing: Bearing remover, 17 mm Remover handle Sliding weight
07936-3710300 07936-3710100 077410010201 or 07936 -371020A or 07936-3710200
Heat the crankcase aoc (176F) evenly using heat gun and remove the balancer bearing
Always wear insulated gloves when handling the crankcase after it has been heatedCAUTION:
Do at use torch to heat the case; it may cause
warDinCl
Apply oil to new bearingsDrive the countershaft and balancer bearings in with the marking side facing up using the special toolsTOOLS Countershaft bearing: Driver Attachment, 52x 55 mm Pilot, 25 mm Balancer bearing: Driver Attachment, 32 35 mm Pilot, 12mm