[QUOTE=66T;209451]Interesting that you should find the plug to make that much difference, keithy2.

I use iridium plugs in my Tenere, WR250R work bike and TTR250 work bike. The Tenere has one because I can convince myself not to put a new plug in every 5 minutes, but I've not really noticed any difference in using it.

Hi, I was a bit sceptical myself and not expecting much if any difference but as soon as i had covered a couple of hundred yards i thought this is smoother! Its not night and day different but at my change up revs of 4000rpm the bars vibrate noticebly less. Lets hope this plug lasts a good 15000 miles or more.

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XTz 660 tenere, adventure spec bash plate, main stand, skid marks tall screen, Oxford tail pack 36 litre. Kobra hand guards, Bigger cast footpegs, Zen overland luggage plate, USB power point, iridium spark plug, TKC80 f k60 R tyres, o2 and fuel Kev mods, DNA stage 2 filter. bark buster bar wieghts, Touratec side stand base and GPS mount. Led spot lights