Fr. Frank
"I can think of no reason to power a 20' Seacraft with more than 140 hp except going faster than 40 mph and/or just wanting to spend extra money on fuel.
Even the boats I see rigged with 150 or 200 hp are running less than 20 mph offshore, and they have a lot more trouble keeping on plane at lower speeds because of the extra weight hanging on the back of the boat."
That's what the Yamaha dealer / installer says - he recommends the new lighter 115 Yamaha 4 stroke for that hull.
The dealer is a very good outboard mechanic and a good friend of my friend who runs a older version of the Yamaha 115 4 stroke on his Polar 20 and gets great gas consumption.
Maybe a new 115 is the way to go - I do have 5 people on the boat some time and take my daughter and her friends water skiing.
Would 115 hp handle that and what speed would a 115 hp manage ?
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