Polaris Indy 120 Owner's Manual

To start the Polaris Indy 120, ensure the safety tether is attached, turn the ignition key to the 'ON' position, and pull the recoil starter handle firmly until the engine starts.
Use unleaded gasoline with a minimum octane rating of 87. Avoid using ethanol blends higher than E10.
Change the engine oil every 50 hours of operation or at the start of each season, whichever comes first.
The Polaris Indy 120 uses skis instead of tires. Ensure the ski runners are in good condition and replace them if worn.
To adjust the chain tension, loosen the axle adjuster lock nuts, turn the adjuster bolts to achieve proper tension, and retighten the lock nuts.
Check for fuel in the tank, ensure the safety tether is connected, verify the ignition switch is on, and inspect the spark plug for damage or fouling.
Clean the snowmobile thoroughly, add fuel stabilizer to the tank, change the oil, lubricate moving parts, and store it in a dry, cool place.
During the first 10 hours, avoid prolonged operation at full throttle, vary the engine speed, and avoid aggressive driving to allow proper engine break-in.
Regular maintenance, using high-quality gasoline, and keeping the snowmobile clean and well-lubricated can help maintain and slightly improve performance.
First, remove the spark plug cap, then use a spark plug socket to unscrew and remove the old plug. Install the new plug by hand, then tighten it with the socket. Ensure the gap is set correctly.