Bombardier SeaDoo 1992 factory shop manual, Page 146Get this manual
Section 07 ELECTRICAL Sub-section 04 (ELECTRIC STARTER)
INSPECTION
Armature
NOTEAn ohmmeter may be used for the following testing procedures, except for the one concerning shorted windings in armature Check commutator for roughness, burnt or scored surface, If necessary, turn commutator on llathe, enough to resurface onlyCheck commutator for mica depthIf depth is less than 0.20 rnm 1.008 in), undercut micaBe sure that no burrs are left and no copper dust remains between segments after undercutting operation is completedCommutator undercut 0.20 t.008 in)
Brush Holder
Check brush holder insulation using an ohmmeterfor Place one test probe on insulated brush holder alnd the other test probe on brush holder plateIf continuity is found, brush holder has to be repaired or replaced
Brush Length
Measure brush lengthIf less th,an 8.5 mrn (.335 in), replace themNOTE: New brush length is 12 mrn 4.472 in)