I just installed boyseen reeds and a uni filter in my kids KFX80. Problem is I got it all back together fired it up with the choke on and it's idling very high. Idle screw doesn't affect it much and when I shut down the choke the engine stops. What's wrong? Do I need to change the pilot jet, maybe larger? I'm not sure exactly what's going on, anyone have a suggestion?

 

Nevermind, I got it. The thin black o-ring on the carb plate was pinched allowing excessive air into the chamber.