Polaris 9919510 Owner's Manual For Maintenance And Safety page 170

Engine Turns Over, Fails to Start
Possible Cause
Out of fuel
Clogged fuel valve
Water is present in fuel
Fuel valve is turned off
Old, poor or non-recommended fuel
Fouled or defective spark plug
No spark to spark plug
Overuse of choke
Low battery voltage
Mechanical failure
Throttle ETC switch not opening
TROUBLESHOOTING
Solution
Turn fuel valve to reserve, refuel
Inspect and clean or replace
Drain the fuel system and refuel
Turn the fuel valve on
Drain and replace with new fuel
Inspect plug(s), replace if necessary
Inspect plug(s), verify stop switch is on
Inspect, clean and/or replace spark plugs
Recharge battery to 12.8 VDC
See your Polaris dealer
Adjust throttle freeplay
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