2005-2011 Honda FourTrax Foreman TRX500 FE/FPE/FM/FPM/TM Service Manual, Page 425Get this manual
ELECTRIC STARTER Remove the following:
nut washer insulator washers brush holder assembly O-ring
INSULATOR WASHER
0 121'"NUT -
Remove the brushes from the brush holderMeasure the brush lengthSERVICE LIMIT: 9.0 mm (0.35 in l