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MAINTENANCE
Extended Storage
Engine Protection
Proper preparation of the engine and fuel system is vital to the
prevention of rust and corrosion on precision engine parts during
storage. Whenever the machine is stored for a period o f more than 60
days, the engine must be fogged with fogging oil. Follow the engine
fogging instructions provided on the can. See page 113.
Always add Premium Carbon Clean or a fuel conditioner/stabilizer to
the fuel tank. Follow the instructions on the can, running the engine
for five minutes to get additives through the entire fuel system. Top
off with fres h fuel.
Using a fuel stabilizer and topping off the fuel tank eliminates the need
to drain the fuel system. If you prefer to drain the fuel tank, use the
following procedure:
1. Transfer unused fuel from the fuel tank to an approved fuel
container using a siphon pump. Do not re-use fuel after storage.
2. Securely support the front of the snowmobile with a jackstand so
the machine is elevated and the engine is tilted rearward.
3. Remove the spark plugs.
4. Rotate the engine slowly, watching the pistons until they’re at
bottom dead center (BDC), the lowest position in the cylinder.
5. Pour approximately one ounce of engine oil into each s park plug
hole.
6. Repeat step 4, then replace the spark p lugs an d lower the machine
to the floor.