Starter Motor Service Points; Pinion Gear Assy. Inspection; Armature Inspection - Yamaha F20A Service Manual

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ELEC
STARTER MOTOR
SERVICE POINTS

Pinion gear assy. inspection

1. Inspect:
Pinion gear teeth
Damage/wear → Replace.
2. Check:
Clutch movement
Incorrect → Replace.
NOTE:
Rotate the pinion gear assy. clockwise to
check that it moves freely. Also, rotate the
pinion gear assy. counterclockwise to make
sure that it locks.

Armature inspection

1. Measure:
Commutator undercut a
Out of specification → Replace.
Commutator undercut limit:
0.8 mm (0.03 in)
2. Check:
Armature coil continuity
Out of specification → Replace.
Armature coil continuity:
Commutator
segments a
Segment -
Armature core b
Segment -
Armature shaft c
8-23
E
Continuity
No continuity
No continuity