
co16Y...
At first I thought you were talking about the old Saito 120. The YS will put that engine to shame. If you are asking about the new Saito 125, I believe it is on par with the YS110 and is 3 ozs lighter (actual weight, I have both engines and weighed them). I think the Saito 125 would be the perfect engine for the UCD60. Same power as the YS and a little lighter which would make balance easier. Only draw back I can see is the Saito doesn't have a pump so you wouldn't be able to put the tank on the CG.
Thanks
Barry