20' max motor weight

[seakat]

I was very happy w an etec 150

[Normagain]

Originally Posted by eggsuckindog

it seems the Yamaha's are the weight pigs of all brands?

Look at a Honda 115 or 135 if you want to see the heavyweight. Right at Yamaha 200 weight.

[primetimebob]

My first post! Re power for a new to me 1973 Seafari. After reading what
others have done and not wanting to overload my boat I am thinking about
the new 2014 90hp e tec pontoon model to get the gear reduction to
turn a larger prop (maybe four blade).. My fishing is mostly trolling at
2 1/2 mph most of the day and hopefully being able to plane at something
above 20knots going in and out. Only have the 30 gal tank and may wish
to try a few overnights............

[FishStretcher]

That should work on a 20 footer. Rumor has it 70 is the minimum. I have 100 hp and like it.

[primetimebob]

Also in my thoughts was the 2014 yamaha four stoke 70hp at 256lbs....

[McGillicuddy]

Primetime, welcome aboard. The etec 90 will be more satisfying. 335 lbs on a Seafari is the best weight to power ratio your going to find and youll wonder if yiur fuel gauge is even working. I think maybe Bilgerat had an old 70 on his Seafari, but I think the 90 will prove a better choice as that 20-25 extra ponies will prove significant in that range.

[FishStretcher]

Originally Posted by primetimebob

Also in my thoughts was the 2014 yamaha four stoke 70hp at 256lbs....

I have a 367 lb F100 Yamaha. Jetted for non ethanol gas, but otherwise great. I think top speed with a F70 might be underwhelming. Or even a 2 stroke 70, if it exists.

[Terry England]

Originally Posted by primetimebob

My first post! Re power for a new to me 1973 Seafari. My fishing is mostly trolling at 2 1/2 mph most of the day and hopefully being able to plane at something above 20knots going in and out. Only have the 30 gal tank and may wish
to try a few overnights............

PrimeTimeBob, I have a stripped down Bowrider with the 90 HP, 20" (2 to 1 gear) E-tec Triple. I have the boat down to maybe 1400#'s because I almost always have a load of 'Stuff" in it, plus 3 people that pushes me back up to almost 3000#'s when I'm the water. I have recently settled on at Power Tech 13" X 14" wheel and the following occurs - planes at 3000 RPM, makes 18.9 knots at 3400 RPM, Spools up to 5300 making 29.8 knots. It is unbelievable on fuel at 1500 RPM or less. I ran idling between 1000-2000 in two Christmas Boat Parades last year and logged 46 miles on the plotter. I topped the tank off with 5-1/2 gallons. If you "mash" on my name it should take you to my home page where it has a "Dredge Marshtackie" Album. (It's the only boat on this site with rust streaks running down the hull) BTW - the 25" E-tec 90 triple has the larger and lower ratio gear-case on it that is the same as the 150 - I believe. I hope this adds to you assessment of all data.

[primetimebob]

Very useful information....thxs...bob