September 22, 201411 yr Hi. Got a 240. Rode a trial on the weekend. Bike was fine, then started missing and stopped. When I took the plug out there was a whisk of something across the electrode. Changed the plug and bike was fine. After the trial I noticed that I took out a medium reach NGK B6HS and replaced it with a NGK BPR5ES which is long reach. What is the correct plug for this bike and what reach should it be?
September 22, 201411 yr Or a IWF22 Denso Iridium ... Same plug has been in my 240 forever now , Spare is in the tool kit , have never even opened the box ! She always starts and never misses a beat Glenn
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