NEW CARB INLETS FITTED. CARBS ALL CLEAN BUT NEEDLES WERE ON TOP SETTING I THOUGHT STANDARD WAS CENTRE NOTCH ANY IDEAS?. BUT FOUND REAL PROBLEM WAS SUPRESSOR CAP ARKING IN CAM COVER GOING TO BUY SOME NEW ONES

Carbs are usually set so they run rich anyway but the needle does not affect tickover. So probably either a bit mucky, air leak or poorly balanced.