Checking The Rear Suspension; Checking The Swingarm Pivot; Adjusting The Front Fork Legs - Yamaha Vmax VMX17C 2009 Service Manual

EAS2S31013

CHECKING THE REAR SUSPENSION

1. Stand the vehicle on a level surface.
EWA13120
WARNING
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 "CHECKING THE REAR SHOCK
ABSORBER ASSEMBLY AND GAS CYLIN-
DER" on page 4-85.
3. Check:
• Rear shock absorber assembly operation
• Rear suspension link pivots
Push down seat on the vehicle several times
and check if the rear shock absorber assem-
bly rebounds smoothly.
Rough movement → Repair.
Refer to "REAR SHOCK ABSORBER AS-
SEMBLY" on page 4-83.
EAS2S31014

CHECKING THE SWINGARM PIVOT

1. Measure:
• Swingarm side play
• Swingarm vertical movement
Refer to "REMOVING THE SWINGARM" on
page 4-89.
EAS21580

ADJUSTING THE FRONT FORK LEGS

The following procedure applies to both of the
front fork legs.
EWA2S31005
WARNING
• Always adjust both front fork legs evenly.
Uneven adjustment can result in poor han-
dling and loss of stability.
• Securely support the vehicle so that there
is no danger of it falling over.
Spring preload
ECA13570
NOTICE
• Grooves are provided to indicate the ad-
justment position.
• Never go beyond the maximum or mini-
mum adjustment positions.
1. Adjust:
• Spring preload
M MMM M MMM M M MMM M
a. Turn the adjusting bolt "1" in direction "a" or
"b".
Direction "a"
Spring preload is increased (suspen-
sion is harder).
Direction "b"
Spring preload is decreased (suspen-
sion is softer).
Spring preload adjusting positions
Minimum
5
Standard
4
Maximum
1
2. Current setting
L LLL L LLL L L LLL L
3-28
CHASSIS
M MMM M M MMM M M MMM M MMM
1
a
b
1
3 2
5 4
2
L LLL L L LLL L L LLL L LLL