Adequate size motor? - Mountain Buzz

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Old 10-03-2018   #1
New Castle, Colorado
Paddling Since: 2011
Join Date: Jan 2012
Posts: 11
Adequate size motor?

Any suggestions on what HP motor will work well for a 13 ft. loaded raft? Was thinking 5 but maybe a 3 is good. Also will likely have a few other boats attached. Thanks.

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Old 10-03-2018   #2
MT4Runner's Avatar
Kalispell, Montana
Paddling Since: 1997
Join Date: Apr 2012
Posts: 3,093
There are a couple other recent threads...

3hp is plenty for one raft. 5hp if you have 3-4 others attached.
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Old 10-03-2018   #3
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C. Springs, Colorado
Join Date: Aug 2004
Posts: 1,938
Get a 5hp. The resale will be better and so will the power. Remember.........anything over half throttle is wasting gas in most downstream situations. If you miss a'll have better luck and twice the power to get back to it with a 5hp.
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Old 10-04-2018   #4
Salida, Colorado
Paddling Since: 1983
Join Date: Nov 2015
Posts: 777
5HP, on the better to have it and not need it, than need it and not have it principle...
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Old 10-04-2018   #5
Vancouver Isl, BC
Paddling Since: 2008
Join Date: Aug 2009
Posts: 28
My 2hp, 4 stroke, long shaft Honda outboard moved a 14ft loaded S/B raft along at 5MPH, when running at full throttle.

Used less than a gallon of gas to complete the 20 miles of the snake in 4 hours or so.
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Old 10-11-2018   #6
Half Moon Bay, California
Paddling Since: '82
Join Date: Jul 2013
Posts: 38
get a 6 hp motor. 4 stroke because many places require them now. The Nissan, mercury and tohatsu are all 3 great little motors with remote gas tanks so you aren't constantly filling the tank. the motor weighs 56 lbs and you should get the 21 inch shaft cause the kick on the boat will usually keep the prop out of the water on the short shaft and the XL shaft is draggin bottom in low water. the 6 hp is powerful enough to maneuver a package of 4-5 boats and easily keep them in the current and away from obstacles. the 6 hp might seem like a lot of power for a 13 ft raft but if you are pushing other boats you will be so happy you went with the 6hp. Nissan, Mercury, and tohatsu motor used to be made in the same factory and have exactly the same specs. I'm not sure if that's still the case. I've seen the 6hp on for $600-$900 which is a good deal but if you want new check this link I've purchased from them a few times and have been happy. Happy boating
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Old 10-12-2018   #7
Los Anchorage, Alaska
Join Date: Feb 2006
Posts: 33
I have a 3.5 long shaft Tohantsu & it can push 2 fully loaded 14’ self bailer rafts across a lake at 5mph. Uses very little gas and only weights 40lbs.
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Old 10-13-2018   #8
Salt Lake City, Utah
Join Date: Jun 2006
Posts: 253
My 5hp Honda long shaft will push 4 boats at around 4 MPH pretty easily.
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Old 10-14-2018   #9
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Phoenix, Arizona
Join Date: Sep 2018
Posts: 54
I just picked up a Tohatsu Sail Pro 20" shaft. 5hp and runs propane. It is a beautiful thing. No gas in the boat, nearly impossible to flood, no worries about water in the fuel, no gas in carb to gum up. And you are already carrying propane to run your stove. Used it last week to run the flatwater above and below Cataract. Highly recommend.
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Old 10-15-2018   #10
Albuquerque, New Mexico
Join Date: Mar 2018
Posts: 196
5HP is great
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