Yamaha YZ 2018 Series, Owner'S Service Manual

Page: 234 / 402

ELECTRIC STARTER
5-37
7. Check:
• Gear teeth
Damage/wear

Replace the starter motor.
8. Check:
• Oil seal
Damage/wear

Replace the defective part
(s).
EASB29B237
ASSEMBLING THE STARTER MOTOR
1. Install:
• Brush spring “1”
• Brush “2”
2. Install:
• Armature assembly “1”
Install while holding down the brush using a
thin screw driver.
ECA
NOTICE
Be careful not to damage the brush during
installation.
3. Install:
• O-ring “1”
• Starter motor yoke “2”
ECA
NOTICE
Install the part that has a smaller step differ-
ence “a” with the magnet of the starter mo-
tor yoke facing the starter motor front
cover.
TIP
Align the match mark “a” on the starter motor
yoke with the match mark “b” on the starter mo-
tor rear cover.
4. Install:
• Circlip
• Plain washer “1”
• O-ring “2”
• Washer (starter motor front cover) “3”
• Starter motor front cover “4”
TIP
• For installation, align the projections on the
washer with the slots in the front cover.
• Align the match mark “a” on the starter motor
yoke with the match mark “b” on the starter
motor front cover.
Brush spring force
3.92–5.88 N (400–600 gf, 14.11–
21.17 oz)
New
a
1
2
a
b
New