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SPARK PLUG

Interval

Nickel plug 45,000 km 3 years*whichever comes first

Iridium plug 60,000 km ~ 105,000 km 4 years ~ 7 years

Replacement guideline

スズ

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　11

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21

If overused without replacement …CAUTION

Purpose and FunctionThe spark plug generates electric sparks for igniting

the air-fuel mixture inside the engine cylinder.

If spark plug electrode degrades or becomes

contaminated, replace spark plug prevents abnormal

combustion.

•Hard to start the engine•Decrease in engine power•Decrease in fuel economy

As spark plug electrode degrades or becomes contaminated, the ignition spark becomes weaker,

which increases fuel consumption and the possibility of engine malfunction.

Fuel&Air

Combustion

Compression ExpansionCompression Expansion

Spark Plug

NEW USED

* When you replace a spark plug, it is essential to use a new plug of the size and heat range specified in the owner's manual.