YS .63 weighs a little more than Saito's .72, yet is more powerful, believe it or not. Great, reliable engine (YS) with TONS of power/tourqe. IMO the best 4-stroke for the OMP Edge, or any profile. But saito .72 is also a good choice, YS just mo betta
I'm anxious to hear a report about O.S.'s new pumped .70 4-stroke. They're claming it weighs less than a saito .72 (old O.S. .70 is a boat anchor). If this is true, and comes close to YS's power..........look out............the only problem is it cost's 300 clams[

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