1988-1994 Honda TRX300 Fourtrax, 1988, 1990-1994 TRX300FW Fourtrax Service Manual, Page 333Get this manual
STARTER SYSTEM Check for continuity between the cable terminal and the brush wire (the indigo colored wire or the insulated brush holder)There should be continuityCheck for continuity between the rear cover and the brush wire (the indigo cover wire or the insulated brush holder) There should be no continuity(2) NO CONTINUITY
(3) BRUSH HOLDER
Disassemble the rear coverInspect the brushes for damage and measure the brush length SERVICE LIMIT: 9.0 mm (0.35 inl