Having set my 72 T120v up well to run with pancakes ,some scumbag has pinched them and everyone in the UK seems to have sold out off offsets so I have purchased a pair of k&N type cone filters . I am struggling to set them up .Pancakes were 190 jet. needle position two, 1.5 turns ) so I first simply raised the needle and screwed in the mixture screw a quarter I then tried a 200 main jets and played around with the needle heights and mixture screw . with a 200 it seems to works best with needle position 1 . I am thinking that the bike is lean ( slight backfiire from carbs and riding it around the block it feels as though it has the choke on ,no acceleration put will tick over As I only had a 190 and 200 main jet I have run out of options so before I free a few moths from my wallet , I wondered whether anyone can point me in the right direction with a set up that they have found works for them . I can then use this as a baseline and try to get a decent set up for me . By the way I am running standard pipes and have no other mods to the engine apart from a + 0.020" piston, valves set as 0.002" inlet and 0.004" exhaust. Appreciate your help