Polaris Ranger 400 HO User Manual (English)

Questions and Answers:

J
Jimmy LopezAug 3, 2025
How to fix an engine that doesn't turn over on a Polaris Ranger 400 HO Offroad Vehicle?
- K
  Kimberly ArroyoAug 4, 2025
  If your Polaris Offroad Vehicle engine doesn't turn over, the problem might stem from low battery voltage. Recharge the battery to 12.8 VDC to resolve this. Also, check for loose battery connections and tighten them. Similarly, inspect and tighten any loose solenoid connections. Lastly, examine the electronic control box connections; inspect, clean, and reinstall the connectors.
H
hwrightAug 8, 2025
What to do if my Polaris Ranger 400 HO Offroad Vehicle engine turns over but won't start?
- A
  Andre HuffmanAug 8, 2025
  If your Polaris Offroad Vehicle engine turns over but fails to start, there are several potential causes. First, ensure you have fuel by refueling the vehicle. If water is present in the fuel, drain the fuel system and refuel. Old or non-recommended fuel can also prevent starting, so replace it with fresh, recommended fuel. Inspect the spark plugs for fouling or defects and replace if necessary. Check for spark at the spark plug and replace the plugs if there is no spark. Overuse of the choke can also be a problem, so inspect, clean, and/or replace the spark plug. Low battery voltage can also prevent starting, so recharge the battery to 12.8 VDC. For water or fuel in the crankcase, or mechanical failure, it is best to see your Polaris dealer.
S
Sharon WoodwardAug 16, 2025
Why is my Polaris Offroad Vehicle engine pinging or knocking?
- S
  Stephanie ThomasAug 16, 2025
  If your Polaris Offroad Vehicle engine pings or knocks, it could be due to poor quality or low octane fuel; replace it with recommended fuel. Another cause could be incorrect spark plug gap or heat range, so set the gap to specifications or replace the plugs. For incorrect ignition timing, it is best to see your dealer.