Polaris 550 Indy 121, Indy Evo Owner's Manual
![Polaris 550 Indy 121, Indy Evo manual cover](/images/76dc50f1bd7d487a1d47b02e/thumbs/thumb175x175.webp)
To break in your Polaris 550 Indy 121 or Indy Evo, avoid high-speed runs and vary the engine speed. During the first 10 hours, operate at 50% throttle or less and avoid prolonged idling. Gradually increase throttle after the initial hours while avoiding wide-open throttle until break-in is complete.
Regular maintenance for the Polaris 550 Indy series includes checking and changing the engine oil, inspecting the drive belt, checking the coolant level, and lubricating the suspension. Perform these checks every 500 miles or before the start of each season.
If your Polaris 550 Indy won't start, check the battery for charge and connections, inspect the spark plugs for wear or fouling, and ensure the fuel is fresh. If the problem persists, consult a professional technician for further diagnostics.
If your Indy Evo is overheating, ensure the coolant level is adequate and the radiator is clear of obstructions. Inspect the thermostat and water pump for functionality. If overheating continues, seek professional service to avoid engine damage.
To adjust the suspension on your Polaris 550 Indy, locate the shock absorbers and use the adjustment tool provided to change the preload settings. Consult the owner's manual for specific settings based on your riding preferences and terrain.
Both the Polaris 550 Indy and Indy Evo require unleaded gasoline with a minimum octane rating of 87. Avoid using ethanol blends greater than 10% to prevent engine damage.
To improve fuel efficiency, maintain proper tire pressure, reduce excess weight, and ensure regular engine tune-ups. Riding at more moderate speeds and avoiding aggressive starts can also help increase fuel efficiency.
Common signs that your Polaris 550 Indy needs a new drive belt include visible wear or cracks, slipping during acceleration, and unusual noises coming from the belt area. Regular inspection and timely replacement can prevent breakdowns.
To store your Polaris Indy Evo for the off-season, clean the exterior and undercarriage, drain the fuel or add stabilizer, disconnect the battery, and cover the snowmobile to protect against dust and moisture. Store in a cool, dry place.
If the headlights aren't working, check the bulb for burnout, inspect the fuse box for blown fuses, and ensure all electrical connections are secure. If the issue persists, consult a professional for an electrical system diagnosis.