Sorry that’s not what I meant. Yes I’ve swopped the carbs around. And swopped the bodies around.
tried everything I can think of, I’ll have to do a compression test next.
It was running on all 4, then 3 now can’t get it to fire up on all 4 again. Swopped the carbs around not new ones, plug looks dry,
swopped plug leads around put 2 on 1 1 on 2 fired up but on the same 3.