When you buy a Yamaha, two things are pretty much for certain...
1 they are expensive
2 they simply just are the best of things at that age and before. Only recently have mercury caught up and exceeded them for all round reliability and technology.
Above is only my opinion, but certainly when it comes to any 2 stroke, the Yamaha can’t be matched.
as always, the condition and the way it’s been cared for previously matters most above all else.