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Snowmobile Polaris EDGE / WIDETRAK (2007-2012 year). Manual - part 17

3.6

Maintenance

9923396 - 2007-2012 EDGE/Widetrak LX Service Manual

The measurement should be 1 1/4" (3.2cm).

If the measurement is not correct adjust driven clutch.

Deflection Adjustment - Polaris Driven / P2

Loosen the 3 bolts on the deflection cam.

To reduce distance between clutch sheaves (reduce
deflection) rotate the cam towards position 1.

To increase distance between clutch sheaves
(increase deflection) rotate the cam towards position
5.

Torque cam fasteners to 10 ft.lbs. (12 Nm) on the
Polaris P-85. Torque P2 deflection cam screws to 12
ft.lbs. (16 Nm).

Raise rear of snowmobile up off of the ground using
a track stand to allow the track to spin.

Start the engine and apply enough throttle to spin the
track.

Turn off the engine, then re-check the belt deflection.

NOTE: Do not rotate the cam past positions 1 or 5. If
the adjustment cam no longer affects the belt
deflection, replace the belt and re-adjust the
deflection. If the desired deflection still cannot be
achieved with a new belt, the driven clutch should be
reconditioned.

= In. / mm.

Belt Deflection: 1.25" (3.2cm)

3.7

Maintenance

9923396 - 2007-2012 EDGE/Widetrak LX Service Manual

Deflection Adjustment - SPA-P2 / Team

Driven

Verify the drive system is FWD drive by rotating the
driven clutch forward.

While holding the set screw with an Allen wrench,
loosen the jam nut.

Turn the set screw clockwise while holding the jam nut
stationary to increase the distance between the clutch
sheaves (increase belt deflection).

Turn the set screw counter-clockwise while holding
the jam nut stationary to decrease the distance
between the clutch sheaves (decrease belt
deflection).

Secure the jam nut while holding the set screw
stationary.

Raise the rear of the snowmobile using a track stand
to allow the track to spin.

Start the engine and apply enough throttle to spin the
track.

Turn off then engine, then re-check the belt deflection.

NOTE: Do not adjust the belt deflection to the point
where the drive belt cord line is visible when the belt
is seated in the driven clutch.

Torque Stop Adjustment

Set torque stop bumper gap to specification after aligning
drive and driven clutches.

After setting gap, torque jam nut to specification.

NOTE: Where applicable, when installing a new
torque stop, position bumper so the tip is just
touching crankcase.

Widetrak Torque Stop Adjustment

NOTE: Engine removed in photo for clarity.

Set the torque stop so it just touches the engine mount.

After setting torque stop, torque jam nut to specification.

= In. / mm.

Torque Stop Bumper-to-Engine Gap

.010 - .030 (.25 - .75mm)

GAP

= T

Torque Stop Jam Nut: 15-17 ft-lb. (21-24 Nm)

= T

Torque Stop Jam Nut: 15-17 ft-lb. (21-24 Nm)

3.8

Maintenance

9923396 - 2007-2012 EDGE/Widetrak LX Service Manual

ENGINE MAINTENANCE

Exhaust Valve Cleaning

The exhaust valve guillotines must be cleaned to ensure
maximum engine performance and throttle response.

Remove the two fasteners that secure the valve
assembly to the cylinder, but not the two screws that
secure the cover to the EV base.

Carefully extract the guillotine out of the cylinder.
Discard the gasket.

Using a clean rag or shop towel, remove the oil
residue from the cylinder, guillotine, and EV base.

Inspect the guillotine for signs of damage. Replace
guillotine if damage is found, and inspect the cylinder
and piston for damage.

Clean the guillotine with brake cleaner and a piece of
fine steel wool. Clean only to remove hardened
carbon deposits.

Once clean, rinse blade with mild detergent and
water. Dry completely.

Install a new gasket, then reinstall the EV assembly.
Apply Loctite 242 to the fastener threads, then torque
to specification.

NOTE:

To obtain maximum exhaust valve

performance, Polaris recommends using Polaris VES
Gold Synthetic Two-Stroke engine oil.
Never mix different brands of engine oil.

= T

Exhaust Valve Housing Fasteners

12 Ft.Lbs. (16 Nm) - Apply Loctite 242

GASKET

EV ASSEMBLY

FASTENERS

3.9

Maintenance

9923396 - 2007-2012 EDGE/Widetrak LX Service Manual

Widetrak Cooling System

Surge Tank

Keep the level of the coolant inside the surge tank
between high and low marks. Coolant level will rise and fall
depending on the coolant temperature.

Always add coolant when the cooling system is COLD.

Fill Tube / Pressure Cap

The fill tube is the primary cooling system fill location.
Always add and remove coolant from the fill tube.

The pressure cap maintains a system pressure of 19 - 20
psi. (131 - 144 kPa). The cap features a locking vent used
to purge air from the cooling system without spilling
coolant. When operating the snowmobile, the vent must
be closed and locked to prevent engine overheating.

FRONT HEAT EXCHANGER

LEFT HEAT EXCHANGER

COOLANT HOSE
(FLOW = TO ENGINE)

BRAKE CALIPER

SURGE TANK

FILTER

CHECK VALVE

FILL TUBE

COOLANT HOSE
(FLOW = ENGINE OUT)

RIGHT HEAT EXCHANGER

CAUTION

Never remove the fill tube pressure cap when the cooling
system is warm. Severe burns to skin may occur from
escaping coolant or steam.

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