Engine Backfires; Engine Runs Irregularly, Stalls Or Misfires - Segway SGW500F-A7 Owner's Manual

TROUBLESHOOTING

ENGINE BACKFIRES

Possible Cause
Weak spark from spark
plugs
Incorrect spark plug
gap or heat range
Old or non-
recommended fuel
Incorrectly installed
spark plug wires
Incorrect ignition
timing
Mechanical failure

ENGINE RUNS IRREGULARLY, STALLS OR MISFIRES

Possible Cause
Fouled or defective
spark plugs
Worn or defective
spark plug wires
Incorrect spark plug
gap or heat range
Loose ignition
connections
Water present in fuel
Low battery voltage
Solution
Inspect, clean and/or replace spark
plugs
Set gap to specs or replace plugs
Replace with new fuel
See your dealer
See your dealer
See your dealer
Solution
Inspect, clean and/or replace spark
plugs
See your dealer
Set gap to specs or replace plugs
Check all connections and tighten
Replace with new fuel
Recharge battery to 12.5 VDC
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