Recently cleaned carbs out and bike was running fine and dandy, now it is missing, no1 is not firing, plug out and is sparking just fine so has to be carb issue as when i take leads off all other cylinders it then runs like a pig, as it should, but when I disconnect no 1 it doesn't miss a beat, apart from the beat it misses anyway! so what can it be..any ideas?
550 with PD46A