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Yamaha YZ250 2022 User Manual

Yamaha YZ250 2022
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CHASSIS
3-20
wheel off the ground.
WARNING
EWA13120
Securely support the vehicle so that there is
no danger of it falling over.
2. Remove the bleed screw “1” and release the
internal pressure from the front fork.
3. Tighten:
Bleed screw
EAM30482
CHECKING THE REAR SHOCK ABSORBER
ASSEMBLY
1. Stand the vehicle upright on a level surface.
WARNING
EWA13120
Securely support the vehicle so that there is
no danger of it falling over.
2. Check:
Rear shock absorber assembly
Gas leaks/oil leaks Replace the rear shock
absorber assembly.
Refer to “REAR SHOCK ABSORBER AS-
SEMBLY” on page 4-55.
3. Check:
Rear shock absorber assembly smooth ac-
tion
Rear suspension link smooth action
Sit astride the seat and shake your body up
and down several times to check whether the
rear shock absorber assembly operates
smoothly.
Unsmooth operation Correct or replace.
Refer to “REAR SHOCK ABSORBER AS-
SEMBLY” on page 4-55.
EAM30242
ADJUSTING THE REAR SHOCK ABSORBER
ASSEMBLY
Use a maintenance stand to raise the rear wheel
off the ground.
WARNING
EWA13120
Securely support the vehicle so that there is
no danger of it falling over.
Spring preload
NOTICE
ECA24360
Do not turn the adjuster forcibly beyond its
adjusting range.
1. Remove:
Rear frame
Refer to “REAR SHOCK ABSORBER AS-
SEMBLY” on page 4-55.
2. Adjust:
Spring preload
a. Loosen the locknut “1”.
b. Loosen the adjuster “2” until there is some
clearance between the spring and the ad-
juster.
c. Measure the spring free length “a”.
d. Turn the adjuster in the direction of “b” or
“c” to make an adjustment.
Bleed screw (front fork)
1.3 N·m (0.13 kgf·m, 0.95 lb·ft)
T
R
.
.
Direction “b”
Spring preload is increased (suspen-
sion is harder).
Direction “c”
Spring preload is decreased (suspen-
sion is softer).

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Yamaha YZ250 2022 Specifications

General IconGeneral
Engine Type249cc liquid-cooled 2-stroke; reed-valve inducted
Bore x Stroke66.4mm x 72.0mm
Compression Ratio8.9~10.6:1
IgnitionCDI
Transmission5-speed; multiplate wet clutch
Final DriveChain
Suspension RearKYB® single shock; fully adjustable, 12.4-in travel
Brakes FrontHydraulic disc, 270mm
Tires Front80/100-21
Tires Rear110/90-19
Seat Height38.2 in
Wheelbase58.5 in
Ground Clearance14.2 in
Fuel Capacity2.1 gal
Wet Weight227 lb
Suspension FrontKYB® inverted fork; fully adjustable, 11.8-in travel
Brakes RearHydraulic disc, 245mm

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