[bryanw80]

Desperately need some help. my 2005 Carter Talon 150 cc is not running right. I have tried everything I can think of and used all of the tech center guides to try and figure it out. It starts up fine and idles fine, but when driven it will sputter and drive with a loss of power, then all of a sudden it will start run good, then back to sputtering? It is completely stock. I have replaced the carb with autochoke, air filter, fuel filter, fuel petcock, fuel lines, vacuum lines, intake, spark plug, coil wire and cdi. Checked the valve clearances also, there were perfect. The spark plug looks fine after checking it, I only run premium gas also. Ive sprayed carb cleaner around everything for leaks to see if there is any change in idle speed and there is none.I am stumped and really can not figure out where to go from here. Any help is appreciated.