Hello , My T/S motor has been rebuilt. New valves, guides, valve springs, bored to 20 thou, new pistons and rings, crank straightened and new big end shells. New crush washers to Inlet pipes and valve caps. Long reach spark plugs installed. Motor starts easily, with only the air slide open to a 1/4. Can rev up using the air slide , but when adjusting with both air and fuel the engine want to stop. The carbie is an AMAC. Is the fuel jet to large or small as it is a 27 jet. Is there settings that I am missing? Cannot run with part or full fuel on the slide. Any Help. Cheers Conrad