Sorry for the late response. The zed's going in to have a few minor things done in a few weeks when I get back of my holiday - the fella said thet fuel filter looks filthy, so I'm gona let them change it, and if it doesn't fix the prob, ill try some k-seal. Been using the car a lot over the weekend and its only very minor, maybe I'm just making a big deal out of nothing! Thanks for all your help fellas, very much appreciated