Okay, so you've used them all your life.  You've probably installed thousands of plugs in cars, motorcycles, trucks, lawn mowers and ATV's, but how do they work?

NGK has an excellent site which has the answers to all your questions!

NGK TECH INFO

If you're wondering what plug to run with your Powrolled engine, in most cases we recommend the OEM plug specification. For performance applications, modern palladium or platinum plugs work very well. Do not vary heat range settings until you have a firm understanding of what these can do to an engine.

Powroll Motor Performance

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