problem solved possibly i took off the ez start and tighten the back plate a lot each screw move 1/4-1/2 turn pretty easy so i snugged that all back up and the screw that holds the carb on also was slightly loose but nothing like that back plate it amazed me that that was the problem because my t-maxx never had engine problems until about the 3rd gallon and then it kind of died on the 4th. and now its just waiting it turn to be up graded or maybe i will sell it as a roller not sure