Yamaha 25J - Armature Inspection; Pinion Inspection

8-25
–+
ELEC
E
STARTER MOTOR
SERVICE POINTS
Pinion inspection
1. Inspect:
● Pinion teeth
Damage/wear → Replace.
2. Check:
● Clutch movement
Incorrect → Replace.
NOTE:
Rotate the pinion clockwise to check that it
moves freely. Also, rotate the pinion coun-
terclockwise to make sure that it locks.
Armature inspection
1. Measure:
● Commutator diameter
Out of specification → Replace.
Commutator diameter:
Limit: 29 mm (1.14 in)
2. Measure:
● Commutator undercut a
Out of specification → Replace.
3. Check:
● Armature coil continuity
Out of specification → Replace.
Commutator undercut limit:
0.2 mm (0.01 in)
Armature coil continuity:
Commutator
segments a
Continuity
Segment -
Armature core b
No continuity
Segment -
Armature shaft c
No continuity