Yamaha F20A, Service Manual

Page: 402 / 444

8-23
– +
ELEC
E
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
Continuity
Segment -
Armature core
b
No continuity
Segment -
Armature shaft
c
No continuity