Checking The Brushes; Checking The Magnet Switch; Checking The Starter Motor Operation - Yamaha F200C Service Manual

Armature continuity
Commutator segments b
Segment –
Armature core c
Segment –
Armature shaft d

Checking the brushes

1. Measure the brush length. Replace the
brush assembly if out of specification.
Brush length limit a:
9.5 mm (0.37 in)
2. Check the brush holder assembly for
continuity. Replace if out of specifica-
tions.
69J1D11
Continuity
No continuity
No continuity
S69J8440
Brush continuity
Brush 1 – Brush 2

Checking the magnet switch

1. Connect the tester leads between the
magnet switch terminals as shown.
2. Connect the positive battery terminal to
the black and white (B/W) lead.
3. Connect the negative battery terminal to
the starter motor body.
CAUTION:
Do not connect the battery for more than
one second, otherwise the magnet switch
may be damaged.
4. Check that there is continuity between
the magnet switch terminals. Replace if
there is no continuity.
5. Check that there is no continuity after the
negative battery terminal is removed.
Replace if there is continuity.
NOTE:
The starter motor pinion should be pushed
out while the magnet switch is on.

Checking the starter motor operation

1. Check the operation of the starter motor
after installing it to the power unit.
Starter motor
No continuity
Br/W
S69J8450
8-24
1
2
3
4
5
6
7
8
9