Can I use a 35hp instead of a 25?

[steelespike]

Re: Can I use a 35hp instead of a 25?

I don't know if anyone mentioned the 76 25hp is only 80 or 90 lbs.
Not bad when you consider todays Etec 25 is about 147 for a short shaft
manual start. And that's lighter than most.

 

[jdsgrog]

Re: Can I use a 35hp instead of a 25?

I don't know if anyone mentioned the 76 25hp is only 80 or 90 lbs.
Not bad when you consider todays Etec 25 is about 147 for a short shaft
manual start. And that's lighter than most.

Really? Only 80 or 90 lbs? My '59 johnson 18hp weighs in at about 80-85 lbs. But I do agree that the older motors seem to be much lighter than today's motors.

 

[steelespike]

Re: Can I use a 35hp instead of a 25?

Really? Only 80 or 90 lbs? My '59 johnson 18hp weighs in at about 80-85 lbs. But I do agree that the older motors seem to be much lighter than today's motors.

Right your 18 is based on the same power head.22 cubes.
Alot of older motors are lighter.The early V4s were relatvely light compared to todays motors the 59 a 60 motors were 200 to 210 The Etec 2 cylinder 40,50,60hp motors are about 240.

 

[AZcamperguy]

Re: Can I use a 35hp instead of a 25?

I haven't worked with a locked up motor before (though I have a 7.5 that is very stiff), so I couldn't say what the problem is. But I could see why you are looking for a new motor. btw, what motor do you currently have and what are looking for (age, two vs four stroke, price range, etc)

As for the conversion question, you most likely can change a pull start into an electric start. For my old '59 Johnson 18hp, there was a conversion kit so I am pretty certain you can find them for any 25hp. If you get an older motor, the cost may be more reasonable as you can find used parts for less on ebay.

The locked up motor is a Johnson 20 hp electric start. I got it free with the boat since it didn't work.
I am hoping to only spend around 400 bucks since it is Christmas time. I know there are some deals out there..... just gotta find the right one. I looked at an 80's Johnson 25 yesterday but it was all corroded from salt water despite the claim that it wasn't used in salt. Also, the filter hole where the muffs would cover was missing and he didn't have a barrel so we couldn't even start the motor. There was another Johnson 25. Same motor that another guys was selling but the seals all needed to be replaced and the marine shop quoted about 300 to do that job which put the motor way out.

I am going to look at a Chrysler 20 hp electric start today that sounds promising. If that doesn't work out I may be checking out an Evinrude 25 from the 80's in the next couple of days.

 

[jasper60103]

Re: Can I use a 35hp instead of a 25?

I wouldn't bother with Chrysler. Stick with old johnny/ride! There are a lot them out there, plenty of parts and lot of folks know how to work on them.

 

[AZcamperguy]

Re: Can I use a 35hp instead of a 25?

I wouldn't bother with Chrysler. Stick with old johnny/ride! There are a lot them out there, plenty of parts and lot of folks know how to work on them.

Really? So if I can get it for say 350-400 in good shape you think I should still pass? Electric start, 20 hp sounds good to me.
The thing about there being lots of J/E's out there in my price range in decent shape is not so true around here.

 

[moonfish]

Re: Can I use a 35hp instead of a 25?

Yeah, old J/E parts are easy to get. The repairman will be more familiar with them too. An 18 or a 20 would do you good. Actually, I'd look for the same motor that you have that doesn't run. It's a parts motor! That can save you a lot of money down the road. I'd probably pull the plugs out and fill them up with pb blaster and see if you could get the flywheel to turn if it was me. 60's & 70's motors are easy to work on. That's what this forum is here for.

I don't think electric start on a small motor is a big deal. You have to keep the motor well maintained. If it's hard to start, something needs to be fixed.

 

[jdsgrog]

Re: Can I use a 35hp instead of a 25?

Ideally, I agree, that it'd be best to find a motor like the one locked up or a JohnnyRude with compatible parts. Even used parts still cost something. All motors need maintenance and need repair eventually. If you like tinkering, it's best to do it yourself since those motors are easy to work on.

I can't say much about Chryslers except that they are harder to find parts for if needed. There are just a lot more Johnsons and Evinrudes out there. And if you look at these forums, see how many posts there are for the Johnson/Evinrude forum compared to the other motors.

I also notice that you are looking for motors around your area. How far are you willing to drive to pick up a motor? All my motors I've driven from 1-4 hours one way to get my motors.

 

[jdsgrog]

Re: Can I use a 35hp instead of a 25?

Just another thought, if it's a powerhead issue then you might think about buying a powerhead for the motor on ebay. You didn't say what year the motor was but here's a link for a '68 powerhead.

http://cgi.ebay.com/ebaymotors/POWER-HEAD-JOHNSON-EVINRUDE-OUTBOARD-20HP-1968_W0QQcmdZViewItemQQhashZitem20ae33d865QQitemZ140361586789QQptZBoatQ5fPartsQ5fAccessoriesQ5fGear

 

[cougar1985]

Re: Can I use a 35hp instead of a 25?

i have several motors ,a couple being a 57/58 johnson 18hp and a 67 20 hp chrysler.the johnny is easly worked on as in i can readily get parts for it ,the chrysler is a lot harder to find parts for and is a lot cranky-er.the 18 starts on one pull every time the other usually a few and their both about the same for power.if i had to get rid of one, the chrysler goes!dont get me wrong the chrysler is a fine motor its just not as good as the johnson but for a few hundred it would be a fine fishing motor,dont totally count out the chrysler .

 

[AZcamperguy]

Re: Can I use a 35hp instead of a 25?

Ok well I see what you guys are talking about here but........ it's too late!
I picked up the Chrysler 20 hp electric start and a Johnson 10 hp for 600 bucks. I feel like I did pretty well. The Chrysler looks great (well if you think an fugly white motor looks good). Very clean. The Johnson looks a little more abused. I will, no doubt, be asking many questions about how to work on them both in the future. I don't know, I figure I can maybe sell my '06 Merc 6 hp 4 stroke for around the same price that I picked these two up for. They are both 2 strokes so I won't have to keep 2 different fuel tanks around either.
Oh, I also got a transom saver and a home made motor stand. Plus, the Chrysler has a whale fin? on it. Not too sure what that does but whatever. It came with it
Thanks guys for the help. I will take some pics tomorrow and upload them so you can see what I bought.

 

[jdsgrog]

Re: Can I use a 35hp instead of a 25?

Not too bad a deal. Congrats! BTW, the "whale fin" is a hydrofoil to help the boat get on plane. I personally don't have an opinon on them, but everyone has something to say. If set up correctly, it should help get the boat on plane at lower speeds thus saving some fuel. Depending on set up, from my understanding, the down side is twofold: 1) slower top end if the hydrofoil due to drag if not set up even with the bottom of boat; and 2) potential stress on the transom bracket. But I've never used one, so I can't speak from experience.

 

[Rudi2]

Re: Can I use a 35hp instead of a 25?

A 20 hp motor on a 14 foot fishing boat? That 'fin will probably do you more harm than good. Try it out, but you'll probably be taking it off.

 

[AZcamperguy]

Re: Can I use a 35hp instead of a 25?

A 20 hp motor on a 14 foot fishing boat? That 'fin will probably do you more harm than good. Try it out, but you'll probably be taking it off.

Well, what do you mean "harm"? Should I just take it off to start with? I don't want to have problems on the water my first time out with it.

 

[AZcamperguy]

Re: Can I use a 35hp instead of a 25?

I just took it off. 4 bolts so no biggie. The prop is banged up though.