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Ngk Plug


danbeaven
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Currently got a Champion Racing plug, which is very good, but am about to order an NGK as a spare.

NGK website recommends BP7ES, but BP5ES for sherco/GasGas etc. I know Lampkins recommend a BP5

SO my options are

BPR5EIX - Iridium

BPR5ES

BP5ES

BPR5EVX - platinum

or should experiment with BP6 or BP7?

thanks

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Hi there,

I was running a bp7 es and it was OK. But seeing as it's winter here and I live in a fairly cool place, I went with the BP5 and it was good. as for the BPR vs BP argument I don't know, the logic is that the resistor maintains a spark for longer giving higher probablitity of ignition. It might help if your bike is miss firing, but that isn't something that I have experienced.

However, more important than the number (heat range) of the plug is gap. I just chucked in a plug with 'roughly' the right gap and all was good, however when I bothered to get some feeler gauges and properly gap it to .55mm, I was able to run more advance and still rev out better and higher than before. Prettly good gain for only a few bux. Anyway this is what I found on my bike, also I run 98RON fuel which is fair game here but is not the recommended 95 ron from factory and I'm not sure about your local regs.

Cheers,

Chris

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