NGK spark plugs for Benelli HSR jet ski

Advice :

Spark plug replacement on a jet ski should be done every 50 hours or every year.

For engines equipped with a compressor, it is best to carry out this operation every 25 hours or every year.

It is strongly recommended to add a thin layer of copper grease to the thread when installing it to make it easier to remove again and thus prevent the risk of the spark plug being welded to the cylinder head or broken in the spark plug well.