Spark Plug - Honda TRX500FA 2006 Owner's Manual

Spark Plug Recommendation
standard spark plug
for cold climate
(below 5°C, 41°F)
Use only the recommended type of spark plug in the recommended heat
range.
Using spark plugs with an improper heat range can cause engine
damage.
This ATV uses spark plugs that have an iridium coated center electrode.
Be sure to observe the following when servicing the spark plugs.
Do not clean the spark plugs. If an electrode is contaminated with
accumulated objects or dirt, replace the spark plug with a new one.
Use only a ''wire-type feeler gauge'' to check the spark plug gap if
necessary. To prevent damaging the iridium coating of the center
electrode, never use a ''leaf-type feeler gauge.''
IJR7A9 (NGK)
IJR6A9 (NGK)

Spark Plug

or
VX22BC (DENSO)
or
VX20BC (DENSO)
Servicing Your Honda
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