Hi,
My NC starts fine and does the common 2 cylinder start, then 3, but takes an age to get on 4(front left) and only when it has been left to get warm will it cleanly rev, it has a new set of plugs and the coils seem fine, so assume it is a carb problem.
As it runs clean and revs smooth when warm, any ideas what is causing the initial lumpiness?
Cheers
wang