Re: How many miles in one ride ?
Non-stop, I don't know.
I did take a trip that was about 73 miles one-way, but I stopped a few times along the way, going and coming back. The engine I have is a 4-stroke Robin-Subaru. I got the tingling too, even though the engine had rubber mounts on it.
I have dreams of making a very small cross-head engine that will turn at a much lower RPM, but don't know when I'll ever get around to it.