RE: Venus II
Don that's the first I heard of a Saito gasser but I'm not surprised. Googled it and found it's a 4-stroker (naturally) called the FG 36, weighs 44 oz and makes 3 hp.
Can't say I see the point of a 4-stroke gasser -- more parts, more weight, less power and slower spool-up than 2-stroke.