Arctic Cat Sno Pro 120 2011, Service Manual

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7. Remove the main spring from the case by lifting the
spring end up and out. Hold the remainder of the
spring with thumbs and alternately release each
thumb to allow the spring to gradually release from
the case.

NOTE: Do not remove the main spring unless
replacement is necessary. It should be visually
inspected in place to save time.
8. Unwind the rope from the roller, untie the slip-knot,
and remove the rope.
CLEANING AND INSPECTING

NOTE: Whenever a part is worn excessively,
cracked, or damaged in any way, replacement is nec-
essary.
1. Clean all recoil starter components.
2. Inspect springs and pawl for wear or damage.
3. Inspect the roller and case for cracks or damage.
4. Inspect the center hub for wear, cracks, or damage.
5. Inspect the rope for breaks or fraying.
6. Inspect the main spring for cracks, crystallization, or
abnormal bends.
7. Inspect the handle for damage, cracks, or deteriora-
tion.
ASSEMBLING
1. Hook the end of the main spring around the mount-
ing lug in the case.
2. Insert the main spring into the case; then wind it in a
counterclockwise direction until the complete spring
is installed.

NOTE: The main spring must seat evenly in the
recoil case.
3. Insert the rope through the hole in the roller and tie a
knot in the end; then wrap the rope counterclockwise
around the roller leaving approximately 20 in. of
rope free of the roller.
4. Apply low-temperature grease to the main spring and
hub.
5. Align the hook in the end of the main spring with the
notch in the roller.
6. Carefully slide the roller over the hub and engage the
spring with the roller; then install the bushing.
7. Install the return spring making sure the short leg of
the spring is properly installed in the hole in the
roller; then install the pawl making sure the return
spring is properly positioned in the notch of the
pawl.
8. Slide the end of the rope through the rope guide of
the case; then tie a slip-knot in the rope.
9. Apply a low-temperature grease to the friction plate.
Place the pawl activator into position on the friction
plate making sure the arms of the activator are prop-
erly positioned to the pawl.
10. Place the friction plate into position allowing it to
rest on the friction plate spring; then install the cap
screw/cap screw w/washer (coated with blue Loctite
#243) and thread the cap screw in until it contacts the
friction plate.
11. Press down on the friction plate and tighten the cap screw
to 48 in.-lb (570 cc) or to 15 ft-lb (800 cc/1000 cc).
12. With 20 in. of rope exposed, hook the rope in the
notch of the roller.
13. Rotate the roller four or five turns counter-clock-
wise; then release the rope from the notch and allow
the rope to retract.
14. Pull the rope out two or three times to check for cor-
rect tension.

NOTE: Increasing the rotations in step 13 will
increase spring tension.
INSTALLING
1. Place the starter assembly into position against the
magneto case.
2. On the 570 cc, secure the starter with cap screws
(coated with blue Loctite #243). Tighten to 60 in.-lb.
On the 800 cc/1000 cc, secure the starter with cap
screws. Tighten to 96 in.-lb.

NOTE: Before tightening the cap screws, slowly pull
the recoil rope until the pawl engages; then tighten
the cap screws centering the recoil against the mag-
neto case.
3. Thread the rope through the bushing in the console;
then install the handle and secure with a knot. Seat
the cap.
4. Release the slip-knot in the rope.
Air Silencer (570 cc)
The air silencer is a specially designed component used to
silence the incoming fresh air and also to catch the fuel that
“spits back” out of the carburetors. The carburetors are cali-
brated with the air silencer in position; therefore, the engine
must never be run with the air silencer removed.

NOTE: To remove and install the air silencer, see
Section 2.
CLEANING AND INSPECTING
1. Check for holes or cracks in the silencer.
2. Periodically clean the silencer by removing the
cover/tool tray assembly and vacuuming the interior
of the silencer.
! WARNING
Care must be taken when lifting the roller free of the
case.
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