runs great, but very hard to start. hot or cold
 

I have checked the valves, new carb, new plug, new cdi, new coil, new stator and getting fuel. when it is cranking and you give it just a hair of gas it bog the cranking down, almost stops it. once you get it running, it runs great! carb is adjusted. I am at a loss with this one! any help would be greatly appreciated!!

this is a 49cc tao tao atm-50a no mods

Did you install a high performance cdi with more spark advance? I have heard that scoots are harder to start after installing an aftremarked CDI.

I found the problem. thanks for the help and maybe some thoughts, I now have one for all that had read this! Cheap feeler gauge!!! spend the money on a reliable set!

Time for new battery?