Snowmobile Polaris 340 Transport Trail Touring Deluxe (2008 year). Instruction - part 7

28

FEATURES

Backrest

The backrest is adjustable for either 

operator or passenger use.

1. Loosen the upper adjustment 

knobs to raise or lower the 

backrest.

2. Loosen the lower adjustment 

knobs to move the backrest 

forward for operator use or 

rearward for passenger use. 

3. Always tighten the knobs 

securely after adjusting.

Operator/Passenger

Raise/Lower

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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. Trailing arms

IFS Adjustment Options
• Front shock spring preload
• Optional springs
• Toe (ski alignment) (see 

page 102)

• Camber (see your dealer)

2

3

4

1

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THE PERFECT FIT

Front Suspension Adjustments

For the best ride, the suspension should be adjusted to use the full travel 

of the shocks with occasional light bottoming. To determine if your 

machine is using full travel, push the jounce bumper down on the shock 

rod until it contacts the body and test ride the machine. The bumper will 

move up on the rod in relation to the amount of travel that was used dur-

ing the ride. If the travel is full, the bumper will be seated at the top of 

the rod.

Shock Components

The front springs can be 

changed if spring preload 

alone isn't sufficient and 

further adjustment is 

desired to control suspen-

sion stiffness. See your 

Polaris dealer for more 

information.

1. Retainer
2. Shock Rod
3. Jounce Bumper
4. Body
5. Threaded Spring Pre-

load Adjuster Nut

WARNING

Always verify ski alignment before making adjustments to the IFS. See page 

102 to check alignment. If the skis are misaligned, see your dealer, as the 

camber adjustment may also be affected.

2

3

4

5

1

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THE PERFECT FIT

Front Suspension Adjustments

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 increase front shock spring preload, 

grasp the spring and turn it to the right. 

Turn it to the left to decrease 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 

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.

NOTE: Not all models have shocks with thread adjustable spring pre-

load. See your dealer for more information. 

Front Springs

For models without externally adjustable or revalvable shocks, the front 

springs can be changed if spring preload alone isn't sufficient and fur-

ther adjustment is desired to control suspension stiffness. See your 

Polaris dealer for more information.

CAUTION

Always leave one thread showing above the adjuster nut. On models 

equipped with a plastic adjuster nut, if the nut is unscrewed from the 

threaded body, the nut will break.

Low

Preload

High

Preload