Im having some issues with jetting my rappy. Im running a hmf slip on, stock headpipe, a k&n filter and outerwear, stock lid. It has a mid throttle pop, like a backfire through the carb. Im running a DJ 134 main with the screw out 2 times, i was running a 132 with the screw out 3 times as dynojet suggest but it was too lean. Should i just jump it up another jet size? The kit only has 2 more sizes, 136 and 138, so im hoping im not screwed

 

Nevermind, i got it running good. Im running a 138 DJ main jet with the screw 2 turns out, looks like i need a stage 2 kit to run no lid.