I have an old hovercraft that uses a small aircraft engine in the front to power both the lift and forward propulsion. I was hoping to find any kind of manual or literature on the engine itself. The hovercraft is an Aircycle 410, built in the early 70s. The engine is a two stroke with horizontally opposed cylinders. I am able to get the engine to turn over with a car battery, but I want a little more info on how to apply either oil, gas, or an oil/gas mixture in order to power the machine before I start making random guesses and destroy the thing in the process.