I have just bought 2 hand built (wood and film) airplanes from the original builder. They are very beautifully built and the guy is a perfectionist in everything he does. They have not been used for quite awhile and I was cautioned to "loosen" the engine up by using a light oil of some kind as they are a little stiff. I do not want to turn the prop until they have soaked for awhile.
Question ... what type of oil should I use and where would I put it (carburetor, exhaust pipe) how long to soak?
1 is a 2 cycle engine and the other a 4 cycle. They are not small engines and neither are the planes.
If there is a flying club in the Hobbs, New Mexico area or someone who could mentor getting me started I would appreciate any and all help. I refuse to fly them without help as they are beautiful airplanes and don't want to crash them.