I have a 1969 360 Yamaha the engine looks exactly like that one, is it worth anything? I put it back together from a box,, has problems,, I got it running and it worked really well, but didn't finish it do the money I needed to invest in things that needed to be replaced,, nowaday people,, wouldn't even be able to kick-start it,, people have turned out to be such big wussies,, it would kick their asses back ! LOL
