Unless the Super 9 has a different carb than all the other Kymco 2t left is RICH right is LEAN!!!!! Don't confuse the guy!!!! If the Mixture screw is BETWEEN THE SLIDE AND THE INTAKE IT IS A FUEL MIX SCREW!!!!! If it is between the slide and airbox then it is an air screw. ALL the other Kymco 2t bike HAVE A FUEL MIXTURE SCREW!!!!!!!!! And I'm 99.9% sure the SUper 9 (even L/c) uses the same carb as the other kymco 2t. You should always step up the slow jet one size for using a kit, it needs more fuel on decel to not seize up, a #38-#40 should be perfect. Hanging idle is caused by lean conditions.
