[QUOTE] The GSX-R is dying intermittently at traffic lights and I'm not sure why... It idles - but then starts to idle a bit roughly (it almost hunts ... rather then rrrrrr, it goes rr..rr..rr..rr) and then cuts out. Not very inspiring. Performance at anything other then at idle continues to be illegally faultless. It's due for it's 18 month/15 000 service in two weeks - any thoughts on what it might be before I let a man look at it?[/QUOTE] Is the bike wet? Mine did that for a bike and I'm pretty sure it was a short in the FI circuit (is yours FI?). Could be a short in the HT leads as well. SteveP might have a better idea as the dealer sort out mine for him after he bought it.