Repower of 1989 Osprey 22-2

[Shamrock]

This is my first post to the board. Just got my ID and password this morning.

My question is...Will a Suzuki 140 be a good replacement for the original Johnson 140? Or should I go with the Yamaha 150? I'm not too worried about going 50 mph, just need a good reliable motor.

Any advice is appreciated...Thanks

[slvrlng]

Welcome aboard!  I personally think the df140 is perfect for a 19-6 or 200 osprey. 222 to me really needs a 175 or 200 to make it walk and talk. Once I blow mine up I am leaning towards a DF175. With the 140 or 150 I don't think you would see much past 35 mph.

[Group W Bench]

Post from Greg Whitley on performance w/ Yamaha 150 4 stroke. Not conjecture but real world figures after a rebuild w/ a brand new motor while prop testing:

"We got an 82-gallon tank in there that is about 10 ft long, so that moves a good bit of weight forward. Having the batteries in the coffin box also helps. Eugene can elaborate more on the technical specifics.

As for the power, I was honestly worried about being underpowered. However, it turns out that the power is perfect. With four guys and a full load of gas, it cruises at 30-31 mph getting about 3.8 mpg. I believe we topped out at 6000 rpms around 43 mph. Couldn't ask for more! The motor isn't too heavy and obviously allows the boat to sit and run like it should. There is so little bowrise it's incredible, and that's without running the tabs down any. Worked out great, I'm glad Eugene had that much faith in it being the correct power."


Remember, these performance numbers are with an 82 gallon tank full of fuel and 4 guys. That is around 650 lbs in fuel alone, and he was reaching 43 mph. I disagree w/ Lewis that a 175 or 200 are required. In my personal opinion, a Suzuki DF 140 or a 150 Yamaha are both wonderfully efficient and reliable power for a 22-2. I have 2 DF 140 Suzuki's with around 900 hours that I'll sell if you are interested. I will be posting in classifieds soon.

[gran398]

Sham,

First and foremost....welcome aboard

You have been quickly inundated with information. You have an open-transom Osprey, and somewhere around 150 hp will get'r done.

Gonna throw one more iron on the fire....twin engines.

Two of us run twins on your open-transom hull....and we're like hogs in slop. Absolutely no way we'd run a single. Twins are the heat, for many reasons. And as Gone Fission accurately points out...in most cases, you can purchase new twin 90's for less money than a single 175.

Safety, maneuverability, economy....take a close look at twins.

Again....welcome

[GoneFission]

I have 2 DF 140 Suzuki's with around 900 hours that I'll sell if you are interested. I will be posting in classifieds soon.

Those 2 motors would be super sweeeeeeeet on the back of my CCP!       What does the DF140 weigh?  

[Group W Bench]

They are 410 lbs each. I have a set of dual binnacle controls and rigging package if you need as well.

[Capt Matt]

I agree with a 150-200 hp, not for the top end but for the fact the motor can cruise not having to work so hard. This way they just seem to last longer and burn less fuel. If you do ever have a big load on the boat it won't be a problem. My 175 pro xs opti gets 4.5mpg plus at a 28-30 mph cruise loaded. If a boat is rated 200hp I always go with close to if not the max.
Twin motors:
If you are doing offshore stuff without a buddy boat I can see the advantage, other than that though I don't see the plus other than being able to turn the boat like a large sportfish with one in reverse one in forward.

Next month I'm running solo the 100nm to the keys on my single outboard,
Gran can I borrow your twins for that trip?

Everyone here has different needs and opinions on there personal boat that is what makes this site so cool.
Will a 140 push your boat? no doubt
To each his own
Capt Matt

[gran398]

Heck yea, come on up and get 'em Matt....won't need 'em 'till next Christmas

[MarshMarlowe196]

This is my first post to the board. Just got my ID and password this morning.

My question is...Will a Suzuki 140 be a good replacement for the original Johnson 140? Or should I go with the Yamaha 150? I'm not too worried about going 50 mph, just need a good reliable motor.

Any advice is appreciated...Thanks

Just out of curiosity, but why would the 150HP outboard be a Yamaha, and why would the 140HP be a Suzuki?  Are these engines for sale that you're considering?

One thing to keep in mind-  According to the EPA, these are the actual HP ratings for a SuzukiDF140 vs. a Yamaha F150:

F150 = 160HP
DF140 = 138HP

So you've really got more than a 20HP difference between the 2 engines.  I can guarantee you that the performance report Mr. Eugene posted with the F150 on a 22-2 is not what you'd experience with the DF140.  I have to agree with Lewis about the 140 - you'll see about 35mph top end with the DF140 on a 22-2.  If you're cool with that, then the DF140 is wonderfully, quiet, reliable engine you'll enjoy for many trouble free years.  Then again, so is the F150.

I agree with Matt on the point of the twins- despite how super cool it is to have twins on any boat, on a 22-2 AS, there's really not much advantage.  If you went with twin 75's or twin 90's, you'd be adding at least 100lbs more to your transom than if you with with a single 150HP or 175HP, regardless of how many times it strokes.  Additionally, you'll get a little better fuel economy with a single engine.

[gran398]

More like 200-250 pounds. But the chances are good you'll never come home at 8 mph on the end of a rope

[Shamrock]

Wow!!! Thanks for all the replies. This is definitely the place for information on old Aquasports.

As far a twins goes...I'm worried that will be too much weight on the transom. I already have some water come in through the scuppers when there's a couple of guys on that back pulling in a fish. I did price out at 175 today. I have some time before I have to commit though. The fiberglass work starts tomorrow. Just cosmetic stuff mostly, except for the fuel tank hatch. Its toast.

I guess it just comes down to cost vs. performance. Oh, by the way...has anyone used a bracket on their 22-2?

Thanks for all the responses. This should be a fun project.

[gran398]

All of the Tampa boats have closed transoms with Porta-brackets.

Here is a recent professional rebuild:

viewtopic.php?f=2&t=9363

[fitz73222]

This is my first post to the board. Just got my ID and password this morning.

My question is...Will a Suzuki 140 be a good replacement for the original Johnson 140? Or should I go with the Yamaha 150? I'm not too worried about going 50 mph, just need a good reliable motor.

Any advice is appreciated...Thanks

Just out of curiosity, but why would the 150HP outboard be a Yamaha, and why would the 140HP be a Suzuki?  Are these engines for sale that you're considering?

One thing to keep in mind-  According to the EPA, these are the actual HP ratings for a SuzukiDF140 vs. a Yamaha F150:

F150 = 160HP
DF140 = 138HP

So you've really got more than a 20HP difference between the 2 engines.  I can guarantee you that the performance report Mr. Eugene posted with the F150 on a 22-2 is not what you'd experience with the DF140.  I have to agree with Lewis about the 140 - you'll see about 35mph top end with the DF140 on a 22-2.  If you're cool with that, then the DF140 is wonderfully, quiet, reliable engine you'll enjoy for many trouble free years.  Then again, so is the F150.

I agree with Matt on the point of the twins- despite how super cool it is to have twins on any boat, on a 22-2 AS, there's really not much advantage.  If you went with twin 75's or twin 90's, you'd be adding at least 100lbs more to your transom than if you with with a single 150HP or 175HP, regardless of how many times it strokes.  Additionally, you'll get a little better fuel economy with a single engine.

No sense in discussing the virtues of twins verses a single for this discussion; since Sham will probably go with a single. But just for the record...

1) I've piloted or owned 3 twin engine powered boats in the last 35 years.
2) I've had a situation where I would have been in deep doo doo in the middle of the Bahamas going to Walkers Key if we weren't running twins when we grenaded one of the engines and limped into Walkers at 1:00 am (thats 110 miles east of Florida).
3) The presumption of higher fuel consumption of twins compared to a single of the same aggregate horsepower is incorrect and I have the data to support the claim. My 115's at WOT burn 23.5 gph or 10% of 2 X 115 or 230 hp. Cruise @3600 10.8-11.2gph. This is substantiated with a calibrated Floscan which I have found to be very accurate. So the single engine 10% of horsepower fuel burn applies to twins.
4) My engines weigh 338# each plus oil and 4 blade stainless props. I have no problem with that kind of weight on a 12 degree (wet) 22-2. The boat will plane @21 mph@3100 rpms.
5) With twins, besides exceptional docking and low speed maneuvering; I found that manipulating the engine trim angles can act much like trim tabs to adjust for shifting loads, etc.

[MarshMarlowe196]

The enhanced manueverability of twins is very nice to have, and I don't think anyone has argued that point here. I can see how adjusting the trim for a single engine only could act like trim tabs, and that's also pretty neat. Then of course there's the nice advantage of having a backup engine if one goes South. But... the price for this is so much weight on a weight sensitive hull. We're all just listing pro's and con's, and of course everyone has good reason to feel that their setup is the best. Like Matt said, to each their own.

I stated that you'd get a little better fuel economy with a single, which still holds true per your numbers since, if we're assuming the 10% rule applies to every 230hp engine, then any 230hp engine would burn 23gph, and your finding is twin 115's burn 23.5gph, so the statement that you'd get a little better economy with a single is still true using those figures alone, though given this is a marginal difference. One would have to do the same test with a calibrated floscan on a single 230hp to verify this is true.

[fitz73222]

The enhanced manueverability of twins is very nice to have, and I don't think anyone has argued that point here. I can see how adjusting the trim for a single engine only could act like trim tabs, and that's also pretty neat. Then of course there's the nice advantage of having a backup engine if one goes South. But... the price for this is so much weight on a weight sensitive hull. We're all just listing pro's and con's, and of course everyone has good reason to feel that their setup is the best. Like Matt said, to each their own.

I stated that you'd get a little better fuel economy with a single, which still holds true per your numbers since, if we're assuming the 10% rule applies to every 230hp engine, then any 230hp engine would burn 23gph, and your finding is twin 115's burn 23.5gph, so the statement that you'd get a little better economy with a single is still true using those figures alone, though given this is a marginal difference. One would have to do the same test with a calibrated floscan on a single 230hp to verify this is true.

Boy you are right; .5 gph more than a single! I actually knew you would pick up on that! Anyway, the next time you go to a plant meeting; raise your hand and ask them why they don't come up with a single engine Dreamliner and then we'll go geese hunting with her! Cause happens!