Recommended Coolant; Cooling System Bleeding; Water Pump Drive Belt Tension; Oil Pump Adjustment - 340 / 550 Engines - Polaris 340 LX 2007 Service Manual

Recommended Coolant

Use Polaris Premium 60 / 40 pre-mix antifreeze. This
premium antifreeze is rated for temperatures down to -
62°F (-52°C).

Cooling System Bleeding

1. Allow the cooling system to cool completely.
2. Verify the coolant level in the surge tank is at the
COLD mark.
3. Remove the pressure cap and fill the fill cap with
coolant to the base of the pressure cap seat. Loosely
install the pressure cap.
4. Elevate the front of the machine slightly.
5. Apply the parking brake and start the engine.
6. Allow the engine idle time to stabilize, then set the
RPM to approximately 600 RPM.
7. Immediately add coolant to the fill tube if the coolant
level dropped significantly after the engine started.
Watch the level and add more coolant until the level
stops dropping.
8. Secure the pressure cap with the vent lock open.
9. Verify the tunnel coolers begin to warm up as the
engine continues to run.
10. Turn off the engine once the tunnel coolers are
sufficiently warmed-up. Close the vent lock on the
pressure cap. Release the parking brake.
11. Allow time for the coolant temperature to cool. Re-
check the coolant level in the surge tank. Add more
coolant if required.
12. Reset the engine idle RPM to specification.

Water Pump Drive Belt Tension

1. Slightly loosen the water pump mounting fasteners.
2. Pull the intake nozzle-side of the housing up to apply
tension to the belt.
3. Secure mounting fasteners when belt deflection is 1/
 
8 to 3/16 (3 - 4mm).

Oil Pump Adjustment - 340 / 550 Engines

NOTE: Before adjusting oil pump, always verify the
throttle lever free play and idle speed RPM are set to
specification.
1. Verify the oil pump MAX OIL FLOW in line marker is
2. Lever adjustment is accomplished by loosening the
3. Apply Loctite 262 to barrel threads and secure jam

Oil Pump Adjustment - 488 LC Engine

NOTE: Before adjusting oil pump, always verify the
throttle lever free play and idle speed RPM are set to
specification.
1. Verify the oil pump lever in line marker is aligned with
9923396 - 2007-2012 EDGE/Widetrak LX Service Manual
©2011 Polaris Sales Inc.
aligned with the oil pump body mark at WOT (Wide
Open Throttle).
two oil pump cable jam nuts, then moving the
threaded barrel up or down until the two marker lines
are aligned at WOT.
nuts when adjustment is set.
the oil pump body mark at the exact point when the
carburetor slides begin to move when the throttle lever
is pressed.
Maintenance
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