I had a brand new kit installed and tested professionally, to break it in I rode it home, about 30 miles, giving it breaks in between every 5 miles or so to keep as little stress as possible on It, around mile 20 after I crossed an intersection and went to start up it started fine but the second I hit the gas it just shut off. I know how to do a lot of trouble shooting so here is what I did TS1- Turn off fuel line, TAPPED prime button fuel game out of air filter indicating flooding, ran motor with fuel off till carb was empty, turned fuel on TAPPED prime but twice started it up let it idle about 3 minutes. Still died on throttle. TS2-Repeated TS1 as it flooded again but kept off fuel, Removed carb, brand new so it was spotless, no leaks, breaks, bends, or scratches inside, I adjusted the throttle needle up to allow more air less fuel and I put on a smaller fuel line. This had more success but it still dies on throttle HOWEVER if I raise the choke 3/4 the way up and SLOWELY give it throttle I can and as soon as the throttle is full I can then slowly bring the choke down to achieve full speed! This will actually stay like that UNTIL I slow down then I have to adjust the chokea gain and start the process over! I am going to check the sparkplug, some sort of "Jet" in the carb I guesse a grain of sand could clog and I'm going to get a good premade fuel mixture if those 3 things dont work I'm at a loss the kit is brand new and like I said professionally installed, he has a warranty on it but he's 30 miles away and I dont own a vehicle.