Arctic Cat Sno Pro 120 2011, Service Manual

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3-20
5. After the oil has drained completely, install the oil
strainer, drain plugs, and washers and tighten to 15
ft-lb.

NOTE: Always install a new crankcase drain plug
washer and a new reservoir washer when changing
the oil.
6. Install a new belly pan plug.
7. Using Oil Filter Wrench, loosen (but do not remove)
the oil filter and allow the oil to drain from the filter;
then remove the filter.
8. Apply a light coat of fresh engine oil to the seal of
the new oil filter.
9. Install the new oil filter by turning the oil filter by
hand until the seal has contacted the oil filter mount-
ing surface; then tighten the oil filter to 15 ft-lb.
10. Pour 2.9 l (3 U.S. qt) of the recommended engine oil
into the oil reservoir.
11. Open the air bleed bolt located on the oil pump
(beneath the coolant tank) to purge air from the oil
hose.
ZJ004A

NOTE: When air can no longer be heard purging
from oil pump bleed, tighten the bleed bolt to 96 in.-
lb.
12. Without starting the engine, place the handlebar
emergency stop switch to the RUN position and the
ignition switch to the ON position. The Oil Pressure
Warning Light should illuminate.
13. If the warning light illuminates (from step 12), start
the engine. The warning light should go out within
five seconds. If it does, proceed to step 14.

NOTE: If the warning light does not go out, shut the
engine off immediately and repeat step 11; then place
the ignition switch to the ON position and repeat step
13.
14. Shut the engine off and pour the remaining amount
(0.9 l or 1 U.S. qt) of recommended oil into the oil
reservoir; then proceed to check the oil level to ver-
ify and finalize the procedure.
Testing Oil Pressure
(1100 cc)
1. Locate the oil pressure sensor below the thermostat
coolant hose; then disconnect the plug-in connector
from the sensor.
ZJ128B
2. Using a 24 mm wrench, remove the oil pressure sen-
sor from the engine.
3. Using an oil pressure gauge and adapter, thread the
adapter into the oil pressure sensor hole and tighten
securely.
4. Start the engine, run at 4000 RPM, and observe the
oil pressure. The engine oil pressure specification is
2.04 kg-cm² (29 psi) ± 20%.

NOTE: This test must be done with the engine at
running temperature.
5. After verifying oil pressure, remove the adapter and
gauge from the engine, install the sensor, and tighten
to 120 in.-lb. Start the engine and check for oil leaks.

NOTE: Before installing the sensor, it may be neces-
sary to apply thread sealant or teflon tape to the sen-
sor threads.
CAUTION
Take care not to allow thread sealant or teflon tape
into the oil passage or severe engine damage will
occur.
Manual
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