Removing The Starter Motor Pinion; Checking The Starter Motor Pinion; Checking The Armature - Yamaha FT50C Service Manual

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Removing the starter motor pinion

1. Slide the pinion stopper 1 down as
shown, and then remove the clip 2.

Checking the starter motor pinion

1. Check the pinion teeth for cracks or
wear. Replace if necessary.
2. Check for smooth operation. Replace if
necessary.
NOTE:
Turn the pinion clockwise to check that it
operates smoothly and turn it counterclock-
wise to check that it locks.

Checking the armature

1. Check the armature axial free play.
Replace the washers and shim(s) 3 if
out of specification.
8-19
Electrical systems
Dial gauge set 1: 90890-01252
Magnet base 2: 90890-06705
Free play limit: 0.6 mm (0.024 in)
2. Check the commutator for dirt. Clean
with #600 grid sandpaper and com-
pressed air if necessary.
3. Measure the
Replace the armature if out of specifica-
tion.
Diameter limit: 31.0 mm (1.22 in)
commutator diameter.
62Y5A11