Yamaha YZ250 2022, Owner'S Service Manual

Page: 181 / 274

KICKSTARTER
5-19
EAM30570
REMOVING THE PRIMARY DRIVE GEAR
1. Loosen:
•
Primary drive gear bolt “1”
TIP
Place an aluminum plate “a” between the teeth
of the primary drive gear “2” and driven gear “3”.
EAM30101
REMOVING THE KICK SHAFT ASSEMBLY
1. Remove:
• Kick shaft assembly “1”
TIP
Unhook the torsion spring “2” from the hole “a” in
the crankcase.
EAM30102
CHECKING THE KICK SHAFT AND
RATCHET WHEEL
1. Check:
• Ratchet wheel “1” smooth movement
Unsmooth movement

Replace.
• Kick shaft “2”
Wear/damage

Replace the kick shaft as-
sembly.
•
Spring “3”
Broken

Replace.
EAM30103
CHECKING THE KICK GEAR, KICK IDLE
GEAR AND RATCHET WHEEL
1. Check:
• Kick gear “1”
Wear/damage

Replace the kick shaft as-
sembly.
•
Kick idle gear “2”
•
Ratchet wheel “3”
• Gear teeth “a”
• Ratchet teeth “b”
Wear/damage

Replace.
EAM30104
INSTALLING THE KICK SHAFT ASSEMBLY
1. Install:
•
Kick gear “1”
• Washer “2”
•
Circlip “3”
• Ratchet wheel “4”
•
Spring “5”
•
Washer “6”
•
Circlip “7”
(to the kick shaft “8”)
TIP
• Apply molybdenum disulfide grease to the in-
ner circumferences of the ratchet wheel.
• Apply the transmission oil on the kick gear in-
ner circumference.
• Align the punch mark “a” on the ratchet wheel
with the punch mark “b” on the kick shaft.
3
1
2
a
b
3
1 2
Ne w
Ne w