Right - how would a fuckwit like me check this out? I'll bung some new[QUOTE] If the plug change is an easy job it won't cost much and can't do any harm. See if the old plugs look very different in colour. If one is much darker looking than the other that tends to suggest a carburation problem. Before you go any further though you might be better googling for a VTR forum to ask the same question. As a matter of interest what did you have before the Firestorm - something with more power and more cylinders?[/QUOTE] Had a TDM850 before the VTR - loved it but bouncy suspension and lack of self control meant I kept chukking it up the road. The last high-side finished it off :( With the noisy Pro-stock zorsts it was really punchy and responsive. Before that was a GSXR600 - I REALLY did love this. Nothing I threw at it could upset it. No matter wot speed or wot mess I got myself into - it was unflappable. Admit I did love the screaming engine too. Was a while after TDM that the VTR came up (took a while for shoulder to heal etc...) quite cheap from a colleague at work. Its a stunner, dry miles, fsh, 7k miles, SP1 paintjob. I figured I loved the low punch of the TDM, wanted a bit more top end and better handling. I knew Gixxer top end and handling weren't on the cards, but thought handling should be acceptable (it might be when I get new tyres!) and a nice punchy 100bhp was a sure thing to make me smile! I do love the bike, but giving it beans is a rather tortuous affair - not at all satisfying :( Will try the plugs - it'll be interesting to see if they're the same colour too. Cheers