YSE 12 to 3cyclinder
I have a 76 h30 that I replaced a single cyclinder yse12 with a Vetus 22hp 3 cyclinder engine. I would have gone with a 2 cyclinder, but I got a great deal on the 3. I didn't have any documentation on the weight of the yse12, but I weighed all the parts and when all was said and done I actually lost 40 lbs in the repower. The newer engines are much lighter that the old ones. Go for the 2 cyclinder engine and take a look at other engine options. I have a freind who repowered a Morgan oi 28 with a 2 cyclinder "Sole'" engine. Their price was way below others, I think it was around $3500 delivered. It's a Mitsitishi (sp?) based engine, same as Vetus and other brands. Sole' has had ads in the back of Cruising World. Good luck,Royce