2007-2009 Honda TRX300EX TRX300X service manual, Page 209Get this manual
CRANKCASETRANSMISSIONCRANKSHAFT Check the transmiss ion gears fo freedom of movement and rotation on the shaftApply engine oil to the gear teeth and shaft journalsEngage the mainshaft and count ershaft gears: Gear teeth and shaft journals COUNTERSHAFT
MAINSHAFT If the shift drum bearing is loose, temporal ly install the shift drum bearing stopper plates, 26.5mm dowel pins, distance collars, guide plate, and bolts as shown