The problem seems to be that the carb is getting too much fuel. It starts easily, but will start "loading up" pretty quickly and idles rough and it will die. If I give it a little throttle it runs worse. If I shut off the fuel valve the idle smooths out and it will run good for about 30 seconds or so before it runs out of fuel. If I flip the fuel valve back on it will slowly start "loading up" and running roughly.
This is a new quad. I pulled the plug and it was black with carbon (from the above). I replaced the plug with a better name brand but no help there. I have read the thread by 2manytoys but not sure where to start or what to do with the carb? Does it sound like something blocking the jets or could it be the float level...or something else?
I appreciate any help you can supply.