Scooterotica

try a 130 main and raise the needle another clip ...the 268 should be rich enough i would have thought.also as has been said check ignition and maybe alter ithe settings ..so that your getting maybe 14 degrees on full chat

Thanks Sean, i tried your suggestion and it was very spluttery (too rich i'm guessing) so i moved the clip to the original spot and it's much cleaner at 3/4 throttle, i think i'm still getting a little pinking further on but i'll have to check on a longer run. The plug was a little on the light side but it usually is. I still think i might have to get it booked in with you for a dyno check