I have same motor...exact same comments...

The only negative I have heard about Suzuki is corrison because the the aluminum they use ????? Any info on that ??

do a tag search here on DF140 for info on a specific problem they had years ago.
It was not a problem with "the aluminum".
I can tell you that, while I did have the specific problem detailed in my other thread, my motor is now 13 years old and has 1100 hrs and has no problem with the aluminum. It is used hard, in salt. I would replace it with a DF150 in a heartbeat when the time comes.

Also, I believe Yamaha had a similar exhaust manifold corrosion problem in certain models... and Mercurys just plain suck....:you:

Just kidding, listen, every brand has had its problems. I really like Yamaha and Suzuki 4 strokes and zukis cost a few $1000s less.

IMHO V20s match perfectly with 150 four strokes, unless you're on a big flat lake and can run at 50mph, then a 200 makes sense

Suzuki has ALWAYS had problems with there aluminum. I'm not knocking them as I actually like SUZUKI's and have reccomended them, BUT you must be aware that there aluminum has always been on the poor side, and corrosion plagued. I'm actually not a big Yamaha fan, but theres one on the back of my skiff because I know they make a quality engine, they hold up, use better aluminum, and have taken measures to stop corrosion from becoming an issue. Suzuki on the other hand is still known for corrosion problems in high salinity areas or don't get flushed religously. And flushing is no guarantee either. I've seen engines that had the best care in the world end up being junked once they needed the 1st work because there was just nothing left inside for gaskets to seal too.

this, i agree 100% and work on them daily