Polaris Ranger 400 HO Owner's Manual page 108

TROUBLESHOOTING
Engine Stops or Loses Power
Possible Cause
Out of fuel
Kinked or plugged fuel vent line
Overuse of choke
Water is present in fuel
Fouled or defective spark plugs
Worn or defective spark plug wires
Incorrect spark plug gap or heat range
Loose ignition connections
Low battery voltage
Incorrect fuel
Clogged air filter
Other mechanical failure
Overheated engine
104
Solution
Refuel
Inspect and replace
Inspect, clean and/or replace spark plug
Replace with new fuel
Inspect, clean and/or replace spark plug
See your dealer
Set gap to specs or replace plug
Check all connections and tighten
Recharge the battery to 12.8 VDC
Replace with fresh recommended fuel
Inspect and clean or replace
See your dealer
Clean radiator screen and core, clean
engine exterior, see your dealer