Polaris 2005 RMK 900 Owner's Manual page 47

THE PERFECT FIT
IQ Front Suspension Adjustments
Front Shock Spring Preload (Premium Only)
Increasing spring preload will increase
ski-to-ground pressure. Decreasing spring
preload will decrease ski-to-ground
pressure. When adjusting, be sure the
springs on both the left and right sides of
the machine are at the same adjustment.
To increase front shock spring preload,
grasp the spring and turn it to the left. Turn
it to the right to decrease preload.
Illustration B indicates high preload and
illustration C indicates low preload.
Increasing the spring preload too much may
adversely affect the handling of the
snowmobile and the performance of the
suspension. Never exceed one inch of
B C
preload beyond the factory settings, and
ensure that both sides are adjusted the
same. When decreasing preload, make sure
at least two turns of preload are holding the
spring between the retainer on top of the
shock and the threaded spring preload
adjuster nut on the shock body.
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