2004 Ski-Doo REV Series Factory Service Manual, Page 281Get this manual
Section 07 ELECTRICAL SYSTEM Subsection 04 (ELECTRIC STARTER)
INSPECTION
All Models except 4-Tec Engines
Armature
NOTE: An ohmmeter may be used for the following testing procedures, except for the one concerning the shorted windings in the armatureCheck the commutator for roughness, burnt or scored surfaceIf necessary, turn the commutator on lathe, enough to remove grime onlyCheck the commutator for mica depthIf the depth is less than 0.20 mm (.008 in), undercut the micaBe sure that no burrs are left and no copper dust remains between the segments after the undercutting operation is completed
A32E20A
1Collar 2Snap ring
Turn starter clutch no6 clockwise to remove it from armature assembly no11Pull housing from armature
CLEANING
CAUTION: Yoke assembly and drive unit assembly must not be immersed in cleaning solventClean brushes and holders with clean cloth soaked in solventBrushes must be dried thoroughly with clean clothBlow brush holders clean using compressed air