Motorcycle action script

long time i haven’t been on the forum but im making a motor racing game and i was wandering how to do this: i made a motor movieclip (1st frame = normal 2d = motor to the left 3rd = motor to the right) if i push left the motor shows he is going to the left, now i already have done that but now i want it so if i release left button it goes to the normal position .

can anyone help me out?

thnx in advance