Yamaha Tenere 700 2020, Service Manual

Page: 227 / 472

ELECTRIC STARTER
5-40
EAS30325
CHECKING THE STARTER MOTOR
1. Check:
• Commutator
Dirt
→
Clean with 600 grit sandpaper.
2. Measure:
• Mica undercut “a”
Out of specification
→
Cut the mica to the
proper measurement with a hacksaw blade
that has been grounded to fit the commutator.
TIP
The mica of the commutator must be undercut to
ensure proper operation of the commutator.
3. Check:
• Armature assembly
a. Connect the digital circuit tester and check
the continuity.
b. If there is no continuity, replace the starter
motor.
4. Measure:
• Brush length “a”
Out of specification
→
Replace the brush
holder set.
5. Measure:
• Brush spring force
Out of specification
→
Replace the brush
holder set.
6. Check:
• Gear teeth
Damage/wear
→
Replace the starter motor.
7. Check:
• Bearing
• Oil seal
Damage/wear
→
Replace the starter motor
front cover.
EAS30326
ASSEMBLING THE STARTER MOTOR
1. Install:
• Lead guide “1”
TIP
Make sure that the slot “a” in the lead guide is
facing in the direction shown in the illustration.
Mica undercut (depth)
0.70 mm (0.03 in)
Digital circuit tester (CD732)
90890-03243
Model 88 Multimeter with ta-
chometer
YU-A1927
G0 88 9 8 6
1
G0 88 9 88
Brush overall length limit
6.5 mm (0.26 in)
Brush spring force
6.03–6.52 N (615–665 gf, 21.71–
23.47 oz)
a
a