2003 Kawasaki 1100 STX D.I. Jet Ski Factory Service Manual, Page 239Get this manual
14-18 ELECTRICAL SYSTEM Electric Starter System
Brush Spring Inspection
that the brush Checkinto placesprings are in place and will snap the brushes firmly If not, reinstall or replace the spring
Commutator Cleaning and Inspection
Smooth the commutator surface [A] if necessary with fine emery cloth [B], and clean out the grooves
the diameter of Measure the starter motorthe commutatorif the commutator diameter Replace with new one [A] is less than the service limitCommutator Diameter Standard: 28 mm (1.10 in Service Limit: 27 mm (1.06 in
Armature Inspection