Help Have taotao110cc it bogs down in high rpms

First off make sure to check if it's a case of not enough air or too much air. If its running great one day and not the next its most likely not jetting but either a air leak causing a "lean condition" when vacuum is increasing with RPM's or there is a blockage with the airbox/filter causing air starvation (overly rich condition). The other thing that causes a similar running condition could be a intermittent grounding issue that occurs when the engine is revved up and ignition starts to drop out.

i had a tao tao 110, it would bog down when you would rev it to higher rpms while riding. Check your vacuum, that was the cause of mine bogging. Also clean your air filter, It helps.