Best outboard jet? (around 25 HP at the pump)

[fakirone]

Wood_Duck » 12 Jul 2014, 22:31[/url]"]I'm running a 2013 30/25 Mercury. It is a fantastic motor and mines been ran quite abit in the time I've had it. Fuel consumption is fantastic. I've got it on an all welded Lowe 1546 with 3 batteries and 80lb terrova. With me and a very heavy box of muskie gear I've been able to hit 18. Two people and it's around 12. You should do much better with your hull though.

Good info. I have a buddy that has an older Merc 25 HP jet (probably at the power head though), I think once I get my pods welded on I'll see if I can borrow it for a day and see how she runs on my hull.

 

[fakirone]

I just did a speed check running my newly rebuilt 25hp 2 stroke. With only one person, but fairly well loaded I made it to 31 mph. I think that a true 25 hp jet like the new Mercury 25 should push me along nicely. ;-)

 

[reedjj]

They are kinda pricey but the new Tohatsu MD25 jet is actual 25hp at the pump. Its got a 40hp powerhead so it should be the most powerfull 25jet on the market. And its a 2Stroke so it'll spin up quick. Direct injected so it should do pretty good on fuel. Probably about like an optimax. Dry weight is only 196lbs. If I was in the market for a smaller jet this would def be a top pick!
https://www.tohatsu.com/outboards/25jet.html

 

[Tbradley]

reedjj » 31 minutes ago[/url]"]They are kinda pricey but the new Tohatsu MD25 jet is actual 25hp at the pump. Its got a 40hp powerhead so it should be the most powerfull 25jet on the market. And its a 2Stroke so it'll spin up quick. Direct injected so it should do pretty good on fuel. Probably about like an optimax. Dry weight is only 196lbs. If I was in the market for a smaller jet this would def be a top pick!
https://www.tohatsu.com/outboards/25jet.html

I think if one is looking at the Tohatsu MD25 jet you might as well get the MD35 jet, it looks to be the same power head as the 25, same weight and displacement.

 

[fakirone]

reedjj » 20 Jul 2014, 09:25[/url]"]They are kinda pricey but the new Tohatsu MD25 jet is actual 25hp at the pump. Its got a 40hp powerhead so it should be the most powerfull 25jet on the market. And its a 2Stroke so it'll spin up quick. Direct injected so it should do pretty good on fuel. Probably about like an optimax. Dry weight is only 196lbs. If I was in the market for a smaller jet this would def be a top pick!
https://www.tohatsu.com/outboards/25jet.html

Tbradley » 20 Jul 2014, 09:59[/url]"] I think if one is looking at the Tohatsu MD25 jet you might as well get the MD35 jet, it looks to be the same power head as the 25, same weight and displacement.

Now THAT is an option. The 35hp is the same weight as the 25hp, and is only 10 pounds heavier than the Mercury 25. They are about 3 grand more than the Mercury 25hp, but it may be worth it for the extra 10hp. Also, my decision to try and buy a new motor is because I am fairly tired of working on engines and want a motor with a warranty. The Tohatsu has a 5 year, as opposed to the Mercury 3 year.
There is a dealer not to far from me, I am going to give them a call tomorrow.

 

[Jeeper]

Is that extra 10 hp worth the $3000 extra? IMO no but everyone is going to differ.

 

[fakirone]

Jeeper » 20 Jul 2014, 17:55[/url]"]Is that extra 10 hp worth the $3000 extra? IMO no but everyone is going to differ.

10hp, no, 10hp and a two year warranty, maybe. It is worth a call to see what the real price is delivered.
Most likely I am going with my original choice, the Mercury 25hp jet though.

 

[Jeeper]

Something else to consider are you sure mercury only comes with a 3yr warranty? A good friend of mine just bought a 6hp that came with a 5yr. Might be something to ask about. just trying to help

 

[Lil' Blue Rude]

From what I've looked it seems to me that the mercury 25hp jet is actually the same motor as the 25hp and 30hp prop. 32.1 cubic inch 3 cylinder.
The tohastu 25hp is the same as the 40hp or 50hp prop at 42.5 cubic inch 3 cylinder. So if you go with the 50/35 tohastu you'll get more like a extra 20hp and 2 year warranty. I figure the 40/25 is more like a 28hp or so at the pump. If it was me I'd go for the tohatsu , but that's just me.

 

[fakirone]

Lil' Blue Rude » 20 Jul 2014, 19:48[/url]"]From what I've looked it seems to me that the mercury 25hp jet is actually the same motor as the 25hp and 30hp prop. 32.1 cubic inch 3 cylinder.
The tohastu 25hp is the same as the 40hp or 50hp prop at 42.5 cubic inch 3 cylinder. So if you go with the 50/35 tohastu you'll get more like a extra 20hp and 2 year warranty. I figure the 40/25 is more like a 28hp or so at the pump. If it was me I'd go for the tohatsu , but that's just me.

I am pretty dang confident that the Mercury 25hp jet is 25 at the pump. I have spoken to multiple people about this, sales, service and other industry. It has a lower displacement than the Mercury 40hp EFI, but it must have different fuel mapping for the EFI or something.

 

[fakirone]

I just realized something, my boat has a 15" transom, if I am not mistaken all of the jet outboards are designed for 20" transoms or above. Sounds like I need a jack plate, right?

 

[Tbradley]

fakirone » Today, 01:58[/url]"]I just realized something, my boat has a 15" transom, if I am not mistaken all of the jet outboards are designed for 20" transoms or above. Sounds like I need a jack plate, right?

Yes. 20, 25 or 27. So you will need a jack plate or transom riser. If you go jack plate get one with the LEAST amount of setback.

 

[fakirone]

Tbradley » 21 Jul 2014, 09:44[/url]"]

fakirone » Today, 01:58[/url]"]I just realized something, my boat has a 15" transom, if I am not mistaken all of the jet outboards are designed for 20" transoms or above. Sounds like I need a jack plate, right?

Yes. 20, 25 or 27. So you will need a jack plate or transom riser. If you go jack plate get one with the LEAST amount of setback.

Okay, that's what I thought.

 

[Lil' Blue Rude]

I am pretty dang confident that the Mercury 25hp jet is 25 at the pump. I have spoken to multiple people about this, sales, service and other industry. It has a lower displacement than the Mercury 40hp EFI, but it must have different fuel mapping for the EFI or something.[/quote]
So why don't they have a 35hp or 40hp prop in that model if they can make the extra power with that block. I'm just tryin to warn you I really don't think that motors making 25hp at the foot.

 

[fakirone]

Lil' Blue Rude » 21 Jul 2014, 16:16[/url]"]I am pretty dang confident that the Mercury 25hp jet is 25 at the pump. I have spoken to multiple people about this, sales, service and other industry. It has a lower displacement than the Mercury 40hp EFI, but it must have different fuel mapping for the EFI or something.

So why don't they have a 35hp or 40hp prop in that model if they can make the extra power with that block. I'm just tryin to warn you I really don't think that motors making 25hp at the foot.[/quote]
I don't really understand why Mercury doesn't make the site more clear, but in this vid
[youtube]2Gg7n9AW26Y[/youtube]
I see no way that an 18hp is getting that kind of speed with that big of a boat and that much weight.

 

[fakirone]

The 40hp is clearly a 60hp EFI power head. the specs all match exactly. The 25hp, however, is the same power head as both the 25hp and 30hp EFI. The Mercury Marine Product Manager states that it does make 25hp at the pump and that it is based on the 30hp powerhead. I can only assume that the reason that it is not based off of the 40hp EFI is weight. The 40 EFI motor is listed at 216 dry weight, significantly heavier than the 25hp 157#, the 30hp 172# and jet at 186#.
It is easy to remap an EFI motor for more horsepower, my buddies and I do it all the time to automobile motors, I am sure that it is possible to do in marine applications as well. Additionally, there are intake, exhaust and injectors, as well as other ways to squeeze more hp out of a motor, so it is possible to use the smaller displacement powerhead to active the same hp rating.
All that being said, I sure would like to see documented proof or a statement as to how they got to that hp number of a clear listing on their site like every other outboard manufacturer.

 

[Tbradley]

A friend of mine had the Merc 25jet 4 stroke on a 1448 Grizzly Tracker and it would plane at all. Now with that said the boat has a side console, rod box and I think the hull specs at 430ish pounds and I believe the motor was mounted too low, by maybe an inch or less. I called several dealers for him asking questions and they said mounted correctly the motor should have planned the boat, but the boat was a little on the heavy side for the 25. One dealer said the motor is probably around 18hp at the jet.??. Well he traded in the 25 for the Merc 60/40 4 stroke and it is much, much better and would be even better if he could mount the motor higher, but he is very close to the top of the transom.

Your boat is much lighter and if you don't weight it down you may be alright.. I'd go with something bigger.

 

[thenextlevel]

I have heard wonderful things about the Yamaha 40/30 jet. More money but they say it is one of the best