Arctic Cat Sno Pro 120 Service Manual page 60

 NOTE: When air can no longer be heard purging
from oil pump bleed, tighten the bleed bolt to 7.5 ft-lb.
C. 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.
D. If the warning light illuminates (from step C),
start the engine. The warning light should go out
within five seconds. If it does, proceed to step E.
 NOTE: If the warning light does not go out, shut the
engine off immediately and repeat step B; then place the
ignition switch to the ON position and repeat step D.
E. Shut the engine off and pour the remaining
amount (0.9 1 or 1 U.S. qt) of recommended oil
into the oil reservoir; then proceed to check
engine oil level.
F. Start the engine and allow it to warm up for 5-10
minutes.
G. Shut the engine off; then remove the oil level stick
from the oil reservoir. Wipe the stick clean.
H. Insert the oil level stick into the oil reservoir with-
out threading it in and remove. Read the oil level
shown on the stick. The oil level should be near
the middle of or on the high end of the NORMAL
range on the stick.
CAUTION
After running the engine to the proper operating tem-
perature, shut the engine off; then open the hood and
access panels and inspect for any signs of coolant, gas-
oline, or oil leakage.
2-40
38. With the engine cool, loosen the bleed screw and
allow the coolant level in the filler neck to drop; then
with the bleed screw loose, add coolant into the filler
neck until no air is visible or heard at the bleed
screw. Tighten the bleed screw and add coolant to the
reservoir if necessary.
 NOTE: If the coolant level in the filler neck suddenly
drops when the bleed screw is loosened, an air-lock
occurred in the cylinder head. Add coolant to the
filler neck until full before starting the engine.
Running the engine with low coolant level can cause
ZJ004A
severe engine damage.
39. Start the engine and allow it to run for five minutes.
Inspect for any signs of coolant leaks in the engine
compartment; then shut the engine off and allow it to
cool.
40. Repeat steps 38-39 at least two more times (more if
necessary) until no air is in the cooling system.
Operating the snowmobile with air in the cooling sys-
tem will cause severe damage to the engine.
41. Install the front/rear upper side panels; then secure
the panels with the five torx-head cap screws for
each side.
42. Install the handlebar close-off panel; then secure the
panel with the two torx-head cap screws. Position the
console assembly on the headlight support bracket;
then connect the console/main harness. Secure the
console with the two torx-head cap screws.
 NOTE: Recheck the tightening torque of the drive
clutch cap screw.
43. Install the hood; then install the side access panels
and secure with existing mounting hardware.
0741-490
CAUTION
CAUTION
743-945A