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. |
Re: Spark plug observations
Mine get replaced at 20,000 miles
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Re: Spark plug observations
I tried a set of Iridiums in my Curvy and they seemed a little flat in response and ran a little lean.I could have adjust the fuel mix but couldn't bothered so stuck the supplied Denso plugs back and all good again.
YMMV HTH :) |
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with spark plugs its not just the tips that erode. spark plugs can look fine but the resistance breaks down, which is the biggest cause of spark plug failure.
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On my old GT380 I used to use platinum plugs (later replaced with Iridiums) and non-resistor caps, and they never, ever needed re-gapping or cleaning. Used to give the tired old ignition system a helping hand :) |
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