2006-2014 Honda FourTrax ATV TRX250 EX TRX250X Service Manual, Page 203Get this manual
CRANKCASETRANSMISSIONCRANKSHAFT Turn the crank weights away from the mainshaft so they do not interfere with the mainshaft gearsRemove the mainshaft and countershaft as an assemblyMAINSHAFT
Remove the countershaft oil sealFor crankcase bearing replacement, see page 12-17
00 not expand the snap ring more than necessary for removal
Disassemble the mainshaft and countershaftClean all disassembled parts in solvent thoroughlyNOTE: Keep track of the disassembled parts (gears, bushings, washers and snap rings) by sliding them onto tool or slipping them onto piece of wireCOUNTERSHAFT