Polaris 2016 ATV Sportsman 850 - Manual (Page 142)

140
TROUBLESHOOTING
Engine Doesn't Turn Over
Engine Turns Over, Fails to Start
Engine Backfires
Possible Cause Solution
Low battery voltage Recharge the battery to 12.8 VDC
Loose battery connections Check all connections and tighten
Loose solenoid connections Check all connections and tighten
Possible Cause Solution
Out of fuel Refuel, cycle key to ON position three
times for 5 seconds each, then start
Water is present in fuel Drain the fuel system and refuel
Old or non-recommended fuel Replace with fresh recommended fuel
Fouled or defective spark plug(s) Inspect plugs and replace if necessary
No spark to spark plug Inspect plugs, verify stop switch is on
Water or fuel in crankcase Your POLARIS dealer can assist.
Low battery voltage Recharge the battery to 12.8 VDC
Mechanical failure Your POLARIS dealer can assist.
Possible Cause Solution
Weak spark from spark plug Inspect, clean and/or replace spark
plug(s)
Incorrect spark plug gap or heat range Set gap to specs or replace plugs
Old or non-recommended fuel Replace with fresh recommended fuel
Incorrectly installed spark plug wires Your POLARIS dealer can assist.
Incorrect ignition timing Your POLARIS dealer can assist.
Mechanical failure Your POLARIS dealer can assist.
Loose ignition connections Check all connections and tighten
Water present in fuel Replace with fresh recommended fuel
Leaking exhaust components Your POLARIS dealer can assist.