User Manual - Page 121

For 2020 TRX250X.

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Servicing Your Honda
114
Spark Plug
4.
Inspect the electrodes and center porcelain for deposits,
corrosion, or carbon fouling. If the corrosion or deposits are
heavy, replace the plug. Clean a carbon or wet-fouled plug with
a plug cleaner, if available, or a wire brush. Inspect the spark plug
electrodes for wear. The center electrode (2) should have a flat tip
and sharp edges, and the side electrode (3) should not be eroded.
If the electrodes and insulator tip appear unusually fouled or
burned, we suggest that you contact your dealer.
5.
Discard the spark plug if there is apparent wear or if the insulator
is cracked or chipped.
6.
Using a wire-type feeler gauge, check the spark plug gap (4). If
adjustment is necessary, bend the side electrode carefully.
The gap should be:
0.031 – 0.035 in (0.80 – 0.90 mm)
(2)
(2) center electrode
(3) side electrode
(4) spark plug gap
0.0310.035 in
(0.80 – 0.90 mm)
(3)
(4)
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