Polaris 120 Indy v4 Owner's Manual
![Polaris 120 Indy 2018 manual cover](/images/b30121a397e0eae707798ab8/thumbs/thumb175x175.webp)
To properly break in your Polaris 120 Indy 2018, operate the snowmobile at half throttle or less for the first 10 hours. Vary the speed and avoid prolonged high-speed operation to ensure proper engine seating.
To adjust the chain tension, locate the chain tensioner bolt beneath the chain guard. Loosen the lock nut, then turn the tensioner bolt clockwise to tighten or counterclockwise to loosen the chain. Ensure there is about 1/4 inch of slack in the chain, then retighten the lock nut.
Use high-quality synthetic 4-stroke engine oil, specifically Polaris 0W-40 or an equivalent suitable for cold temperatures, to ensure optimal performance and protection.
If your Polaris 120 Indy 2018 won't start, check the fuel level, ensure the kill switch is in the "run" position, inspect the spark plug for fouling, and verify that the choke is properly set. If these steps don't resolve the issue, consult a professional technician.
Before storing your Polaris 120 Indy 2018, stabilize the fuel, change the oil, lubricate the suspension, remove the battery and store it in a cool, dry place, and cover the snowmobile to protect it from dust and moisture.
To clean the carburetor, remove it from the engine, disassemble it carefully, and soak the parts in a carburetor cleaner. Use compressed air to dry and clear any blockages, then reassemble and reinstall the carburetor.
To change the drive belt, remove the belt guard, then relieve the tension on the belt by pushing the drive clutch inward. Remove the old belt and install the new one, ensuring it's seated properly in the clutch grooves. Reattach the belt guard.
A rough idle in a Polaris 120 Indy 2018 could be due to a dirty carburetor, incorrect fuel mixture, or a fouled spark plug. Cleaning or replacing these components can often resolve the issue.
To enhance performance, consider upgrading the exhaust system, using high-quality fuel and oil, and ensuring regular maintenance checks, such as cleaning the air filter and spark plug.
Signs that the track needs replacing include excessive wear, missing or torn lugs, and visible cracks or damage. Replacing a worn track can improve traction and safety.