Snowmobile Polaris 600 RUSH (2010 year). Manual - part 74
8.62
Steering and Suspensions
9923311 - 2010-2012 PRO-RIDE RUSH/Switchback/RMK Service Manual
© 2011 Polaris Sales Inc.
STEP 2 - FINE TUNE THE BALANCE
The Pro-Ride Progressive rear suspension allows the
rider to fine tune the balance of the snowmobile depending
on the driver’s riding style and trail conditions. Balance
control is accomplished both mechanically and by the
driver.
Mechanical balance adjustment involves increasing or
decreasing the rear track spring preload from the base
setting established in step one. Fine tuning the balance
should only be done after riding the snowmobile.
Adjustments should always be performed in small
increments.
NOTE: Turn the spring adjuster one full turn at a
time and then ride the snowmobile taking note of
any changes.
Increasing spring preload one full revolution at a time will
shift the snowmobile balance to the front and result in
increased ski pressure with less weight transfer for flatter
cornering and more precise steering.
Riders who sit or stand at the rear of the seat or experience
push through corners may want to increase rear track
spring preload.
Decreasing spring preload one full revolution at a time will
shift the snowmobile balance to the rear and result in
decreased ski pressure with more weight transfer during
acceleration.
Riders who sit or stand close to the fuel tank, when riding
on loose snow with little traction, or when steering effort is
too high may want to decrease rear track shock spring
preload.
Rider-active balance control involves adjustments in rider
position and/or rider weight distribution when turning,
encountering bumps/road approaches, or during
acceleration/braking. Rider-active balance control can
effect the snowmobile balance just as much as adjusting
the rear track spring preload.
For example, riders wanting less inside ski lift during
cornering, but maximum traction during acceleration can
shift their body position/weight towards the front and into
the turn and then shift their body position/weight rearward
when exiting and accelerating out of the turn.
Likewise, riders who use a less active riding position may
want to only adjust the rear track spring preload to achieve
similar results.
Remember that while the Pro-Ride progressive rear
suspension can be adjusted to satisfy all types of riders
and riding styles, it is unlikely that one rider’s setup will
provide similar results for a different rider.
Always reset the rear track shock preload and shock
compression dampening settings when a new driver rides
the snowmobile.
KEY POINTS/RECOMMENDATIONS
• Increasing rear track shock spring preload shifts
the snowmobile balance forward
• Decreasing rear track shock spring preload shifts
the snowmobile balance rearward
• Always begin suspension setup by setting the rear
track shock spring preload to the rider’s weight in
everyday street clothes.
• Make small adjustments when tuning the
suspension settings
• Ride the snowmobile after making each change
and take note of the results of each change
• Make ride position and weight distribution (sit at
the rear of the seat or close to the fuel tank, lean
into turns, etc.) changes while riding and take note
of the results
• Ride the snowmobile on various trail conditions
and take note of the results
• Adjusting spring preload controls balance,
adjusting the compression or rebound (if
equipped) clickers controls comfort
• Verify the track tension is set to specification
STEP 3 - ADJUSTING RIDE COMFORT/QUALITY
NOTE: Step 3 applies to shocks equipped with
compression and/or rebound adjusters.
After performing steps one and two, the last step in
adjusting the snowmobile’s suspension is to adjust the
ride comfort.
Ride comfort/quality is controlled by the remote shock
compression dampeners.
BALANCE
MORE TRACTION
MORE SKI PRESSURE
LESS SKI PRESSURE
LESS TRACTION
RIDER ACTIVE
SPRING PRELOAD