Hello,

I've just put a 55hp Yamaha /Mariner shortshaft lower on my 70 to build a ces style motor. It works but it doesn't pump water.
Should I have used the 70 waterpump in stead of the 55? Or is there anothe issue i'm missing?

Also the exhoust doesnt line up so it uses the ehaust dump above water a lot. Is this a problem?
I'd like to run the smaller lower unit to get away from the 2.33 gears and the drag the big foot causes.

Thanks in advance