yeah I think it is mounted fine I have another plane that is mounted the same way but it has an enya .40 on it. Thanks for the input. It dies at full throttle only after it warms up for a while and on the ground it runs great but at long periods in the air it stalls.I have checked the clunk in the tank and the tank itself all hoses too. I tune it on the ground and then it's like it changes in the air. the motor also feels like it has a bit of play in the rod bushings too.