didn't like mean to start a bashing of any sorts, didn't even think I bashed anything (Saito). Funny how I read again and again all this maintenance crap that's needed for YS engines and yet, I've never had to do any of it. I don't use after run oil, yes, I make little changes on the high end needle when weather dictates it. A Saito 100 weighs 21 oz with muffler, my YS120SC weighs 32 oz, that's not 1 pound different. My tank is mounted on CG, no changes to flight characteristics during flight, no fuel draw problems. Yes, I thought about putting a YS91AC on the plane, but what can I say, I didn't believe it would satisfy my thrust to weight ratio craving.
Hey, I did not put down Saito, I just promoted YS, there's a difference you know. The Saitos are fine engines, they are just not a complete package like the YS, unless you have the freedom to mount them and the tank just the right way.
DKjens