I have reached the end of the line. I have a PX150 engine with a mallossi 166 kit , cosa clutch, gearing kit and a lightened flywheel but i can`t get the farting thing to run properly. It goes fine up to about 1/2 or 3/4 throttle then it starts to chug and splutter like its getting too much fuel. I am either going to try and get the jetting sorted out on that carb or perhaps i would change it for a bigger carb. I have a PHBH30 Dellorto carb, do you think that would be any good for the engine or would it just be too big. What jetting could i use in my standard carb or what carb should i use? Which would give best performance?
Any advice would be great, thanks!!!