hi all

small prob with my cos,im running greys T34 and L6 with chip to suit,runs great until i hit traffic....when standing still for a few minutes it run's on 3 and wont clear ??????...usualy over fuels on 3 or 4..take plug out dry it off and away we go until the nxt stop..have fitted new plugs and leads rotor and cap.doesnt happen all the time but gettin to be a pain...Can any one help ????