I posted a couple of weeks ago with a big backfire. Did the new plug and drained the bowl and it worked and away i went. I couldn't get a cr8e plug and got a cr9e instead. guy at bike shop said it was ok. a couple of days later it was hard to start and was 'fluffing', not quite a miss but a little stutter at low revs. once it was going it was right. then it has gotten harder to start and now i cant start it at all, doesn't even sound like going. has backfired once again, a slightly muffled farty type bang. when i tried with the hot start on it sounded like it wanted to go and the headlight came on for just a second ( meaning it must have at least fired) but now nothing. my foot is hurting and I'm unfit. any suggestions.