Polaris Trail Boss 330 Quadricycle Owner's Manual page 107

Contact your Polaris dealer for service if you're unable to identify
solutions using the following charts.
Possible Cause
Blown fuse
Low battery voltage
Loose battery connections
Loose solenoid / starter connections
Possible Cause
Out of fuel
Clogged fuel valve or filter
Water is present in fuel
Fuel valve is turned off
Old or non-recommended fuel
Fouled or defective spark plug(s)
No spark to spark plug
Crankcase filled with water or fuel
Overuse of choke
Clogged fuel filter
Low battery voltage
Mechanical failure
Possible Cause
Poor quality or low octane fuel
Incorrect ignition timing
Incorrect spark plug gap or heat range
Engine Does Not Rotate
Engine Rotates, Fails to Start
Engine Pings or Knocks
TROUBLESHOOTING
Solution
Replace fuse
Recharge battery to 12.5 VDC
Check all connections and tighten
Check all connections and tighten
Solution
Turn fuel valve to reserve, refuel
Inspect and clean or replace
Drain the fuel system and refuel
Turn the fuel valve on
Replace with new fuel
Inspect plug(s), replace if necessary
Inspect plug(s), verify stop switch is on
Immediately see your Polaris dealer
Inspect, clean and/or replace spark plugs
Replace the filter
Recharge battery to 12.5 VDC
See your Polaris dealer
Solution
Replace with recommended fuel
See your Polaris dealer
Set gap to specs or replace plugs
105