Removing The Starter Clutch; Checking The Starter Clutch; Installing The Starter Clutch - Yamaha YZ250FXM 2021 Owner's Service Manual

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REMOVING THE STARTER CLUTCH

1. Remove:
• Starter clutch screw "1"
TIP
While holding the side of the clutch housing "2"
with the sheave holder "3" as shown, remove the
starter clutch screws "1".
Sheave holder
90890-01701
Primary clutch holder
YS-01880-A
1
1
2
3
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CHECKING THE STARTER CLUTCH

1. Check:
• Starter clutch roller "1"
Damage/wear  Replace.
2. Check:
• Starter clutch gear "1"
• Damper assembly "2"
Burrs/chips/roughness/wear  Replace the
defective part(s).
1
1
5-42
STARTER CLUTCH
1
3. Check:
• Starter clutch gear's contacting surfaces
Damage/pitting/wear  Replace the starter
clutch gear.
4. Check:
• Starter clutch operation
a. Install the starter clutch gear "1" onto the
primary driven gear "2" and hold the pri-
mary driven gear.
b. When turning the starter clutch gear clock-
wise "A", the starter clutch and the starter
clutch gear should engage, otherwise the
starter clutch is faulty and must be re-
placed.
c. When turning the starter clutch gear coun-
terclockwise "B", it should turn freely, oth-
erwise the starter clutch is faulty and must
be replaced.
A
B
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INSTALLING THE STARTER CLUTCH

1. Install:
• Primary driven gear "1"
TIP
Install the primary driven gear "1" so that the por-
tion "a" as shown faces to the starter clutch side.
2
1
2