hi just got me bike back together ai gone, pod filters in, 125 mains thruxton needles, no shims, 42 pilots, she starts fine had carbs balanced, when i excellerate about 3/4 throttle, it backfires and dies hit kill switch and she starts, but farting and no responce, tried a little choke and she runs a lot better, have both screws about 4 turns out , when she does go , its smooth and no flat spots could it be float levels? or do i need 45 pilots any sggestions ? cheers

lowered 2 in stretched front ,widened front forks, aubergine black pearl paint 40 ford rear light standard exhaust all baffels removed, pods, 155 main, 45 pilot, thruxton needle, 16 tooth sprocket procom ignitor set to no 5