Segway FUGLEMAN UT10 2022 Owner's Manual page 132

MAINTENANCE,STORAGE AND TRANSPORTATION
The spark plug is located under the cargo box. Please refer to
page 105 to open the cargo box. When replacing the spark plugs,
please replace both spark plugs at the same time.
1. Remove the ignition coil fixing bolts.
2. Take out the ignition coil, The spark plug is located below the
ignition coil.
3. Using the spark plug wrench provided in the took kit, remove
the plugs by rotating them counterclockwise.
4. Reverse the procedure for spark plug installation. Torque to
specification.
Normal spark plug : The electrode part is grayish white, grayish
yellow or light brown, and the electrode gap is about 0.7-0.9mm.
If the spark plug shows electrode wear, carbon deposits or,
clearance is too large replace the spark plugs.
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