RE: cleaning planes
LOL Minn! I have one plane using a 4 Stroke and one using a 2 Stroke. Both require some cleaning, btu I agree the 2 stroke is way messier. I also find it harder to route the exhaust from the 2 stroke pitts muffler to keep it off the plane. The 4 stroke muffler setup seems to make it easier. I reiterate my previous post however, rubbing alcohol form the drug store, in a spray bottle, cuts the oil right off the plane. And, excess evaporates leaving the plane clean and dry.