the thing to do is make the main jet bigger or buy a bigger one,these scooters from china and taiwan are made to run so weak that they will not run well at all,its all done to keep the emissions down but hey w t f++k ,i would suggest making it bigger buy using some very small carb drills you can get them froma good diy shop you need to tell me the size of the main jet and ill tell you what to drill it to,also check the valve clearances as they have a habit of tightening up and closing the clearance up which in turn loses you compression ok.
adam bike doctor
January 2007
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