Well, maybe the standard NGK / Nippondenso plugs don't have the juice like the iridiums that come in the 929/954/1000.Cowboy1600 said:Im in love with iridium plugs. They seemed to sharpen up throttle response a lot, aswell as maybe 2-3hp gain. The results were awesome. I wont ever use any other. If you have a mate thats a mechanic ask him to get you some. They will be much cheaper.
$A24 each at bike shop $A11 thru a mate