Thanks for the question, and info on your engine. However the throttle cable is determined by the model Yerf-Dog, not by engine. Please look here, Yerf-Dog Owner's Manuals
, to determine which model is the closet resemblance of your kart, within the manual you should be able to find a part number for the throttle cable.
Answer provided by: BMI Karts (6/14/2016)