ORIGINAL: MinnFlyer
ORIGINAL: da Rock
It's really not an argument. It's a simple fact that there is no maintenance required for the valves on our 2-cycle model airplane motors. None. Ever.
You're right on point "B", but there is always room for argument...
It is a simple fact that I burn a heluva lot less fuel, and I rarely ever need to spend 10 minutes at the end of each day wiping slime off my planes.
So let's see, spend 10 minutes checking the valve clearance once or twice in the life of the engine vs. spending 10 minutes after each flying session cleaning slimey 2-stroke residue.
Sounds to me like there's more work involved in using 2-strokes.
Chuckle chuckle.........
Always room for sure.
I usually take a minute or two sometime before each airplane's maiden and stick a 3" length of silicone hose on my muffler pipe to route the "slimey residue" away from the airplane. What don't hit the airplane ain't gotta be cleaned off. And darned if my 4stroker doesn't mess up whatever it's exhaust hits. However, to the 4stroke's credit, there is a lot less and the muffler is very directional.
And since I got a $105.00 OS46AX on my model instead of a $255.00 Saito, I took the $155 left over and hired a guy to wipe down my airplanes when they need it. Since that takes him less than a minute per model, I have him take them apart and put 'em in the car with his free time.
(always time for a bit'o humor too, eh)