Bombardier SeaDoo 1997 factory shop manual, Page 187Get this manual
Section 07 ELECTRICAL SYSTEM Sub-Section 04 (STARTING SYSTEM)
PARTS INSPECTION
11, Armature
NOTE: An ohmmeter may be used for the following testing procedures, except for the one concerning shorted windings in armatureCheck commutator for roughness, burnt or scored surfaceIf necessary, turn commutator on lathe, enough to resurface onlyCheck commutator for mica depthIf depth is less than 0.20 mm (.008 in), undercut micaBe sure that no burrs are left and no copper dust remains between segments after undercutting operation is completed2, Brush Holder
Check brush holder for insulation using an ohmmeterPlace one test probe on insulated brush holder and the other test probe on brush holder plateIf continuity is found, brush holder has to be repaired or replaced
Measure brush lengthIf less than 8.5 mm (.335 in), replace themNOTE: New brush length is 12 mm (.472 in)
F01H0RA
A03E05A