I am fairly new to nitro but have flown them for a few months. My question is i picked up another plane from a friend i filled the tank opened the throttle a little and when i went to start the plane with my starter fuel shout out of the carb what would cause this?

You inadvertently crossed the muffler and carb lines? The fuel tank to carb relationship in the new airplane is wrong and the tank to high? is the engine in either airplane inverted? Lots of questions.

John

Fuel ines are correct the engine is not inverted fuel tank in proper position,

Are you using a fueling valve?

yes simple hand crank fuel pump just like on my other plane.

When you filled the tank did you remove the line to the carb?  You may have filled the carb. and it's just blowing clear.

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No that is your fuel pump that's not a fueling valve. OK lets get down to the nitty gritty, if your carburetor is flooded after filling the tank that badly then one of two things are happening Either - the carb is simply to low in relation to the tank and a syphon is started or you are simply fueling incorrectly for the plumbing and forcing fuel the wrong direction and into the carb.

You have not indicated how the tank is plumbed is it a two line system? or is it a three line system? is a Fueling Valve used (that is a popular device that stops fuel from being forced into the carb and directs it toward the fuel tanks. Not all airplanes a plumbed the same way and we have no way to know what your setup is unless you tell us.

John