25 hp vs. 15hp???

[suzuki40]

I have a 12' johnboat flatbottom. My 15 hp motor got stolen last weekend. I have a 25 hp evinrude with tiller handle that I could use. would there be a problem in this?<br /><br />Suzuki40

 

[Fouled Plug]

Re: 25 hp vs. 15hp???

It's a problem if it exceeds the rated max HP for your boat.

 

[suzuki40]

Re: 25 hp vs. 15hp???

Max h.p. for the boat is 15hp I only have the 25hp to use now. What are my worries in using the 25hp motor?

 

[suzuki40]

Re: 25 hp vs. 15hp???

Im sorry for coming off as pushy about this subject.but, Im waiting to get his boat out on the water and try this out. I just need a little more input as to the dangers or what to look out for with this set up. Thanks so much fellas.<br /><br />Suzuki40

 

[Fouled Plug]

Re: 25 hp vs. 15hp???

Overpowering a boat can cause unpredictable, dangerous handling. The extra weight and thrust exceeds the manufacturer's design limits and makes for a very unsafe vehicle. In some areas I believe it is even illegal. Not to mention liability if you are involved in an accident. If you really want to run it, it is up to you. (Obviously I would advise against it.)

 

[suzuki40]

Re: 25 hp vs. 15hp???

Do you have any Idea how much more the 25 hp would weigh vs. the 15hp?

 

[Bear]

Re: 25 hp vs. 15hp???

What are you concered about? The power/speed or the weight? You can always adjust the power/speed trough the tiller handle. The weight is there. If you put more weigth in front and keep it safe you'd be fine. <br />That will get you out on the water anyways.

 

[suzuki40]

Re: 25 hp vs. 15hp???

Im concerned about the transom, I dont want to get out there an the motor rip the transom off the back of the boat. also will this motor drown the back end of the boat when I stop?<br /><br />Suzuki40

 

[Bear]

Re: 25 hp vs. 15hp???

"a 12' johnboat flatbottom" <br />Can't see it from here, but if you don't run it @ wot you don't use the 25 hp. Less stress on the transom. Water in the boat when you stop? You sound like a safe boater to me. Just take it easy and learn how it reacts. If you really want to be safe do as Fouled Plug told you.<br /><br />To sell the 25 hp and by another 15 hp can't be too hard, right? Sorry about the stolen 15 hp btw. I know how that feels <br /><br />I just thought you want to get out on the water really soon. You can if you are careful.

 

[suzuki40]

Re: 25 hp vs. 15hp???

Just got in from the lake. That 25 hp evinrude is not what I was looking for! I thought I had a rocket strapped to my a##!!! Looks like im going to have to find another 15 hp. I'll tell you though, that was a real rush in a 12' flatbottom john boat! WOW!!<br /><br />Suzuki40

 

[Jwill]

Re: 25 hp vs. 15hp???

I ran a 25 HP on my 12' Klamath for along time.<br />My Klamath is a V-hull and will handle the HP better than your 12' flat bottom.<br />Your transom will not rip off. The transom on Klamath was severely weakened by backing down a hill and the skeg catching the pavement. It pulled the transom down quite a ways. I ran it for years like that (sure I was a little nervous) and it done fine.<br />Just go slow until you get used to it.<br />I would get a new/used 14' aluminum semi v hull boat to put that 25 HP on instead of selling it and going down in power unless your 25 horse outboard is real old.

 

[suzuki40]

Re: 25 hp vs. 15hp???

Jay Williams,<br /> It is an 85' evinrude 25 h.p. It is clean and runs great and starts on first pull. as you read in my post before this on. It hauls a## on my 12' john. Its just a little too hair of a ride for me. Im the kind of person that would run it wot all the time and I know what the outcome would be shortly afterwards.<br /><br />Suzuki40

 

[Bear]

Re: 25 hp vs. 15hp???

<br />You couldn't help yourself. <br />Safe boater... hmpf<br /><br />Yep, keep the 25 hp or the boat.

 

[Bear]

Re: 25 hp vs. 15hp???

Edit (double post)

 

[suzuki40]

Re: 25 hp vs. 15hp???

Hey Bear, <br />I took it out on the water and just tooled around a bit. I powered up a little and the excelleration was great. I was running around half throttle or so and cranked it up wot. It was VERY cool, but unsafe for sure. I would guess it ran about 40 mph? I dont know for sure, I do know that you had better be careful turning it around corners.<br /><br />Suzuki40

 

[NathanY]

Re: 25 hp vs. 15hp???

My advice to you is to sell the boat and keep the 25. You will find that it is more costly to replace the 15 than it is to buy a 14 or 16ft flat bottom. You will be happier with the extra room you have too.