Checking The Front Shock Absorber Assemblies; Adjusting The Front Shock Absorber Assemblies (For 4D3D) - Yamaha 2009 YFM25RY Service Manual

d. Tighten the rod end locknuts of both tie-
rods.
Locknut (tie-rod end)
15 Nm (1.5 m·kg, 11 ft·lb)
TIP
Adjust the tie-rod ends so that "A" and "B" are
equal.
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EAS29300
CHECKING THE FRONT SHOCK
ABSORBER ASSEMBLIES
The following procedure applies to both of the
front shock absorber assemblies.
1. Place the vehicle on a level surface.
2. Check:
• Front shock absorber assembly
• Front shock absorber rod
• Spring
• Gas cylinder (for 4D3H, 4D3M)
Refer to "CHECKING THE FRONT
SHOCK ABSORBER ASSEMBLIES" on
page 4-49.
3. Check:
• Operation
Pump the front shock absorber assembly
up and down several times.
Unsmooth operation → Replace front
shock absorber assembly.
Refer to "FRONT ARMS AND FRONT
SHOCK ABSORBER ASSEMBLIES" on
page 4-47.
EAS29310
ADJUSTING THE FRONT SHOCK
ABSORBER ASSEMBLIES (for 4D3D)
EWA14920
WARNING
Always adjust the spring preload for both
front shock absorber assemblies to the
same setting. Uneven adjustment can
cause poor handling and loss of stability.
1. Adjust:
• Spring preload
ECA4D3F010
Never attempt to turn the adjuster beyond
the maximum or minimum setting.
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a. Turn the adjuster "1" in direction "a" or "b"
with the ring nut wrench "2".
Direction "a"
Spring preload is increased (suspension
is harder).
Direction "b"
Spring preload is decreased (suspension
is softer).
Spring preload adjusting posi-
tions
Minimum
1
Standard
2
Maximum
5
Ring nut wrench
90890-01268
Spanner wrench
YU-01268
3-24
CHASSIS