Engine Backfires - Segway FUGLEMAN UT10 2022 Owner's Manual

Clogged fuel injector Clogged fuel injector
Low battery voltage Low battery voltage
Mechanical failure Mechanical failure

Engine backfires

Possible Cause
Weak spark from spark Weak spark from spark
plugs plugs
Incorrect spark plug gap Incorrect spark plug gap
or heat range or heat range
Old or non- Old or non-
recommended fuel recommended fuel
Incorrectly installed Incorrectly installed
spark plug wires spark plug wires
Incorrect ignition timing Incorrect ignition timing
Mechanical failure Mechanical failure
TROUBLESHOOTING TROUBLESHOOTING
Clean or replace new fuel injector Clean or replace new fuel injector
Recharge battery to 12.5 VDC Recharge battery to 12.5 VDC
See your dealer See your dealer
Solution
Inspect, clean and/or replace spark Inspect, clean and/or replace spark
plugs plugs
Set gap to specs or replace plugs Set gap to specs or replace plugs
Replace with new fuel Replace with new fuel
See your dealer See your dealer
See your dealer See your dealer
See your dealer See your dealer
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