Hey, I recently tried to fix my ATV (wouldn't start) by buying a new carb. I attached the carb and tried starting it up. It wouldn't start so I primed it and tried again. It fired up and took off slowly and eventually reached full throttle and died shortly after. I didn't touch the throttle for it to do that. I got a different spring for the carb, I tried a different carb (same ATV type), I tried adjusting the throttle cable (unsure if I did that properly), I tried a new gas tank and filter. Nothing has worked any suggestions? The only way to get it to start is of I prime it. I'm not sure of the exact model of ATV.