Quote Originally Posted by Rico View Post
I am very curious...

Smoother than the 4 stroke, eh? -
Yes, I suspect the reason it is more smooth is because it has 2 cyl, while the 4 stroke has one.

The Tohatsu/Mercury/Nissan is not a bad motor, just not as refined as the Yamaha.

The Yamaha 4 stroke (2 cyl) is silky smooth, in the 6, 8, and 9.9 models. (note: I think we missed it, but I think there is a new Yamaha 6hp 1 cyl also).

Likely noisier???
What's the weight of the Yamaha?
Can you give me model number?
They both weigh 55-60#, and the yamaha makes less noise (at least IMHO) since it does not need to run wide open to get to hull speed.