2001-2006 Honda TRX 300EX Sportrax 300EX Factory Service Manual, Page 301Get this manual
ELECTRIC STARTER
Remo the following:
washer insulator washers brush holder assemblv O-ring
BRUSH HOLDER
Remove the brushes from the brush holderMeasure the brush lengthSERVICE LIMIT: 9.0 mm (0.35 inl