16. STARTING SYSTEM Mongoose/KXR 90/50 Starter Motor STARTER MOTOR REMOVAL Before removing the starter motor, turn the ignition switch OFF and remove the battery ground. Then, turn on the ignition switch and push the starter button to see if the starter motor operates properly. Disconnect the starter motor cable. Bolts Remove two mounting bolts at the starter motor attaching left crankcase, then remove Front Cover the starter motor. (Mongoose/KXR 90's starter motor is located on the engine. Mongoose/KXR 50's starter motor is located under the engine.) DISASSEMBLY Remove the two starter motor case screws, front cover, motor case and other parts. Motor Case Case Screws Commutator INSPECTION Inspect the removed parts for wear, damage or discoloration and replace if necessary. Clean the commutator if there is metal powder between the segments. Check for continuity between pairs of the commutator segments and there should be continuity. Also, make a continuity check between individual commutator segments and the armature shaft. There should be no continuity. 16-3