Honda TRX680FA, Owner'S Manual

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IFR5L11 (NGK)
IFR6L11 (NGK)
VK16PRZ11 (DENSO)
VK20PRZ11 (DENSO)
or
or
standard spark plug
for extended high
speed riding
138
Spark Plug Recommendation
Spark Plug
Servicing Your Honda
Using spark plugs with an improper heat range can cause engine
damage.
Use only the recommended type of spark plug in the recommended heat
range.
This ATV uses spark plugs that have an iridium coated centre 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.
To check the spark plug gap, use only a ‘‘wire-type feeler gauge.’’ To
prevent damaging the iridium coating of the center electrode, never
use a ‘‘leaf-type feeler gauge.’’
Do not adjust the spark plug gap. If the gap is out of specification,
replace the spark plug with a new one.
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