Snowmobile Polaris 600 IQ Racer (2015 year). Instruction - part 6

THE PERFECT FIT

Front Suspension Adjustments

Independent Front Suspension (IFS)

Break in the suspension for about 150 miles (240 km) before making
any fine-tuning adjustments.

Settings will vary from rider to rider, depending on rider weight, vehicle
speed, riding style, and trail conditions. We recommend starting with
factory settings and then customizing each adjustment individually to
suit rider preference. The machine should be methodically tested, one
change at a time, under the same conditions (trail and snow conditions,
vehicle speed, riding position, etc.) after each adjustment until the best
ride is achieved.

IFS Components

1. Skis

2. Front shocks and springs

3. Rod ends

4. Control arms

IFS Adjustment Options
• Front shock spring preload
• Optional springs
• Optional shock valving

(Walker/Evans shocks)

• High/Low Compression

damping

• Rebound damping
• Toe (ski alignment)

THE PERFECT FIT

Front Suspension Adjustments

Shock Spring Preload

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 change front shock spring preload,
grasp the spring and rotate it.

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
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
the top of the shock and the threaded
spring preload adjuster nut on the shock
body. Failure to do so could cause the retainer to fall off when the
suspension is fully extended.

TIP: Not all models have shocks with thread-adjustable spring preload. See your

dealer for more information.

NOTICE: On some models equipped with a plastic adjuster nut, the nut will

break if it is unscrewed from the threaded body. Do not force the nut if
resistance suddenly increases while you’re turning it.

Low

Preload

High

Preload

THE PERFECT FIT

Front Suspension Adjustments

Shock Valving (Walker/Evans Shocks)

These shocks can be revalved if spring preload alone isn't sufficient and
further adjustment is desired to control suspension stiffness.

WARNING! Changing shock valving requires special tools and a sound
knowledge of mechanical theory, tool use, and shop procedures to perform the
work safely and correctly. Shocks contain high-pressure nitrogen gas. Use
extreme caution when handling high-pressure service equipment. We
recommend that this work be performed by a POLARIS dealer.

Compression Damping

High Compression Damping
Force Adjustment

Increase the high compression
damping force by turning the
adjuster clockwise to increase the
stiffness.

Decrease the high compression
damping force by turning the
adjuster counter-clockwise to
increase the softness.

The maximum adjustment for this
adjuster is the fully turned in
position. The minimum adjustment
is 22 clicks out from the maximum
position.

CAUTION! Do not turn the adjuster past the minimum or maximum adjustment.
The adjuster may be damaged.

Standard Position

High speed adjuster

14 clicks out from fully turned in position

Adjuster

Stiffer

Softer

THE PERFECT FIT

Front Suspension Adjustments

Compression Damping

Low Compression Damping
Force Adjustment

Increase the low compression
damping force by turning the
adjuster clockwise to increase the
stiffness.

Decrease the low compression
damping force by turning the
adjuster counter-clockwise to
increase the softness.

The maximum adjustment for this
adjuster is the fully turned in
position. The minimum
adjustment is 28 clicks out from
the maximum position.

CAUTION! Do not turn the adjuster past the minimum or maximum adjustment.
The adjuster may be damaged.

Standard Position

Low speed adjuster

14 clicks out from fully turned in position

Adjuster

Stiffer

Softer

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