danbeaven Posted September 10, 2007 Report Share Posted September 10, 2007 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 Quote Link to comment Share on other sites More sharing options...
fkrisztian Posted September 10, 2007 Report Share Posted September 10, 2007 I'm using BP5ES, and it's fine. But I know nothing about the other plugs. Quote Link to comment Share on other sites More sharing options...
putrid_fruit Posted September 10, 2007 Report Share Posted September 10, 2007 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 Quote Link to comment Share on other sites More sharing options...
telecat Posted September 10, 2007 Report Share Posted September 10, 2007 We use the BPR5EIX Iridium plug and have had no problems. Maintains spark. Gap is pre-set and runs well. Never fouls either. Quote Link to comment Share on other sites More sharing options...
gasgasssser Posted September 10, 2007 Report Share Posted September 10, 2007 I use theBP5evx,definately better than the standard plug(for me anyway) and it costs more but well worth it. Quote Link to comment Share on other sites More sharing options...
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