Ok, I need some help on installing a new engine on my pontoon. It is a 21' or so pontoon boat. My questions are, how do I determine what motor shaft length I need. What is considered to be the keel base? How do I measure it from the top of the transom so I will know. What do people...
Ok,
I just got a 90's model 21' or so Sun Tracker Pontoon boat. I am trying to determine what type engine would be best for it. Here is what I am thinking, please correct me if I am wrong.
4 Stroke
~90 HP
20" shaft (not sure on this one... I duno the transom length and how to figure this...
