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Craig380 · 09-04-18, 02:37 PM

When I got my used 650K6 from the dealer, they gave it a full service, including new, standard NGK plugs. After about 6,000 miles (mostly brisk open-road riding, almost no town work) I replaced them with a set of Iridiums.

The standard plugs were pretty much unworn, gap was about 30thou / 0.75mm.

During the week I thought I'd have a look at the Iridiums as they'd done 8,500 miles of the same type of riding. Again, zero electrode wear and no sign of wear elsewhere, gap was still bang on the 0.7mm which I'd set them at.

So the moral of the story is: SV650s seem to give their spark plugs an easy life.

09-04-18, 02:37 PM	#1
Craig380 Member Mega Poster Join Date: May 2015 Posts: 1,238	Spark plug observations When I got my used 650K6 from the dealer, they gave it a full service, including new, standard NGK plugs. After about 6,000 miles (mostly brisk open-road riding, almost no town work) I replaced them with a set of Iridiums. The standard plugs were pretty much unworn, gap was about 30thou / 0.75mm. During the week I thought I'd have a look at the Iridiums as they'd done 8,500 miles of the same type of riding. Again, zero electrode wear and no sign of wear elsewhere, gap was still bang on the 0.7mm which I'd set them at. So the moral of the story is: SV650s seem to give their spark plugs an easy life.