Hey guys, I am not sure if I need to change the jet in my carb, it is a 26mm carb fitted to a 23mm head. Well anyway how do you know if you need a different size main jet? My 110cc does not have good theottle response, if I open the throttle all the way up it just dies, but if I go half way and let the rpms build up a little then shove it all the way open it does just fine. I also noticed if I lean the fuel mixture out it does better but has less power. If I richen the fuel mixture it has more power but acts like I described above. Can anybody help me?