Any single cylinder engine is going to shake a bit. It isn't possible to make one that doesn't.

Some folks received some prop adapters that were clearly out of spec. I checked the one on my SPE 40 and it was fine.

Big bore kit price with the cost of the engine will buy you a much better and larger engine. Not worth the effort or expense unless you stumble upon some preexisting cheap parts that will work, seredipitously, of course.

I'm missing my Brillelli built SPE 40 and BCMAE built SPE 26. Shouldn't have sold them. Oh well, I did sell them for a good cause. I bought a glow radial with the proceeds. Still, I miss them...


Ed Cregger