Polaris 600 EDGE RMK, Service Manual

Page: 278 / 392

SUSPENSIONS
7.17
Front Suspension Setup and Adjustments
Spring preload is one of the adjustment options which affects
ride. Preload is the amount of pressure at which the spring is
held. The longer the installed length of the spring, the less the
amount of pre-load; the shorter the installed length of the spring,
the more the amount of pre-load. An increase in IFS shock
spring pre-load will result in an increase in ski pressure.
To adjust front spring preload on threaded adjust models, grasp
the spring and turn in a clockwise direction (as viewed from the
bottom of the shock) to increase the preload. Turn in a counter-
clockwise direction to decrease preload.
In the adjacent illustration, high preload and low preload posi-
tions are depicted.
When adjusting, be sure springs on both the left and right sides
of the machine are at the same adjustment.
For the best ride the spring preload should be as low as possible.
Set the preload to use the full travel of the ski shock with occa-
sional light bottoming.
CAUTION:
If the plastic nut is unscrewed from the threaded body the nut
will break. Always leave one thread showing above the plastic
nut or the spring coils will stack, resulting in damage.
For the best ride the spring preload should be as low as pos-
sible. Set the preload to use the full travel of the ski shock with
occasional light bottoming. To determine if your machine is us-
ing full travel, push the shock jounce bumper down as far as it
will go on the shock rod and test ride the machine.
The bumper will move up on the rod in direct relation to the
amount of travel. For example, if the shock travel is full, the
bumper will be seated at the top of the shock.
S
Remove the existing spring and install the next highest
rate spring, or
S
Reduce the preload on the existing spring and change the
shock valving to obtain the desired effect. NOTE: Shock
valving can only be adjusted or changed on models
equipped with Ryde FX
t
, Indy Select or Fox
t
shocks.
Turning
clockwise
increases
preload
Low Preload
High Preload
Always
leave at
least
one thread
showing
above nut
Push
jounce
bumper
down as
far as it will
go on
shock rod
Shock rod