Yamaha 250GETO, Service Manual

Page: 272 / 293

ELEC
8-19 6S35H11
Electrical system
2. Check the brush holder assembly for
continuity. Replace the brush holder if out
of specifications.
Checking the starter motor operation
1. Check the operation of the starter motor
after installing it onto the power unit.
Checking the choke solenoid
1. Disconnect the choke solenoid leads.
2. Connect the digital circuit tester to the
choke solenoid leads.
3. Measure the resistance of the choke
solenoid. Replace the choke solenoid if
out of specification.
4. Check the armature for continuity.
Replace the armature if out of specifica-
tions.
Checking the brush
1. Measure the brush length
a
. Replace
the brush assembly if below specification
limit.
6G480256
c
d
e
Armature continuity
Commutator segments
c
Continuity
Segment – Armature core
d
No continuity
Segment – Armature shaft
e
No continuity
Standard length:
17.0 mm (0.67 in)
Wear limit
a
:
10.0 mm (0.39 in)
6G480270
2
1
6G480280
Brush continuity:
Brush
1
– Brush
2
No continuity
Choke solenoid resistance:
3.4 – 4.0
Ω
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