Polaris 120 XC SP - Manual (Page 72)

A--53
MAINTENANCE
Carburetor Protection During Off-Season Storage
When preparing your snowmobile for off-season storage we
recommend that you add a fuel conditioner/stabilizer or Premium
Carbon Clean (2871326) to the fuel tank. Follow the instructions on
the can. Run the engine for five minutes to get additives through the
entire fuel system. Then top off with fresh fuel and turn the fuel valve
to “off.”
If stabilizer is not used, make sure the fuel valve is “off” and drain the
carburetor. Catch fuel in a container or shop cloth.
Remove the spark plug and pour approximately 5cc of engine oil into
cylinder. Slowly pull the recoil starter so the engine turns over two or
three times. Reinstall plug securely. Position piston at bottom dead
center (BDC). Observe all fire safety rules when draining carburetor.
See gasoline warnings on page A--29.
Slowly pull the recoil starter handle until resistance is felt. Leave it in
that position. Clean the engine thoroughly with an oiled cloth.
If stabilizer is not used, turn the fuel valve to “off.” Remove the
strainer cup, place the strainer over a container, and open the strainer
cock to discharge fuel from the fuel tank. Remove the carburetor float
chamber bolt from the bottom and discharge fuel from the carburetor.
Replace bolt.