RE: Saito or YS engines.
All:
Contrary to some statements here, I have never had any trouble tuning and running ANY YS engine. Every one I've bothered with has dialed in with no particular effort, and run fine.
I just feel completely happy with the Saito engines, good compromise between complexity and power, weight and expense.
Bill.
PS: I've not yet had my first YS engine. Maybe when I do bother with one the first paragraph will no longer be true. Haw. wr.