Ok everyone, had another go yesterday. Had put the original idle jets back in and gave it a go. The bike started but would not idle. it ran as long as I revved it. As soon as it was warm I had to close the enricher off and it ran slightly better but still would not idle. At least now it will start. Tried turning the idle screw out a half turn, still would not idle, then another half, still would not idle. At this point I thought I would check the carbs one last time. Took them off and blocking off the various channels, I ran liquid through all the pilot ways, I am now 100% sure that every single way is totally clear. One thing I did notice is that the idle screw will easily screw down and the point comes out int the carb intake, is this normal or has the previous owner screwed it down too much?? One thing to add, I got popping from the exhaust when accelerating which I presume is due to the main jet still not being big enough? Any advice would be appreciated.