is that a nexstar

you can just use windex on the plane, as for the motor you might want to find a local flying club and get them to help you. as i see your new here, and i wouldn't want you to hurt yourself or someone else. if you learn properly this is an awsome hobby. if that is the plane, look here for more info on it (
http://www.hobbiconexstar.com/manual.html). good luck with it. keep us posted on your progress