User Manual - Page 122

For 2023 TRX90X.

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Servicing Your Honda
113
(cont’d)
Spark Plug
Use only the recommended type of spark plug in the recommended
heat range.
NOTICE
Using spark plugs with an improper heat range can cause engine
damage.
Refer to Safety Precautions on page 84.
1.
Clean any dirt from around the spark plug base.
2.
Disconnect the spark plug cap. Take care to avoid damaging the
spark plug wire when disconnecting the cap.
3.
Using a spark plug wrench provided in the tool kit, remove the
spark plug.
Spark Plug Recommendation
standard spark plug CR7HSA (NGK) or
U22FSR-U (DENSO)
for cold climate
(below 5°C, 41°F)
CR6HSA (NGK) or
U20FSR-U (DENSO)
for extended high
speed riding
CR8HSA (NGK) or
U24FSR-U (DENSO)
Spark Plug Inspection & Replacement
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