Tested | Mercury New 25 4-stroke v Old 25 4 stroke

We match Mercury's new 500cc, 25hp 4-stroke outboard against the 529cc model that it replaces.

[@tieoneon1614]

Absolutely love my new 25. Pushes a 16ft v-hull 28 mph with an 11p prop, feels like it could handle a 12p and its barely broken in. With two guys it still hits 25mph. Its very light for power trim/e-start, zero vibration, no torque steer effortless steering.

[@davidlove7825]

Great review. Looking at one now.

[@anthonykhalil70]

I was a sceptic against 4 strokes loving my two stroke. Just purchased a new Merc 4 stroke with I did it earlier.

[@TheDakotamag]

I am curious if you could swap the new tiller to the older style motor?

[@denims5595]

Tohatsu outboards

[@JGilbert529]

Which cost more sometimes

[@colinmead8996]

Hmmm the bigger cubic 526cc that’s a lot heavier level pegged it.. Not bad for the older version. I think tiller options & manual tilt easier here. Otherwise your ok with your earlier bigger cube motor. Comes down to price..

[@user-hm6lr9zm3z]

Hi this manual version how easy is it to pull start, compared to a 25 2 stroke Johnson? and the ratchet tilt compared to tilting a Johson?

[@gunsandrotors8704]

Gear ratio is better on the new engine. They probly found some more torque on it. Just like they did on the 20hp when they redesigned it in 2018.

[@JZWAdventures2023]

Insane 63kg for a 25hp !! just too heavy for a portable outboard, I run a 2022 Suzuki 20hp at 47kg once tuned it pulls 25hp at the prop ;-)

[@jonnymartin9295]

Why does americans buy these 25hp that are actually tuned down from 30hp? And then compares them to 2 cylinder 20hp outboards.. In europe everyone buys the 30hp version.

[@riverrivers250]

Ikr,,, i dislike how heavy these 25hp 4 strokes are,,,, im almost pulling the trigger on a Yamaha 25 cause it weighs 126lbs? Apparently,,, my 1996 mercury 25hp is sucha gas guzzler, but i like the lightweight of it.

[@user-yw7yb6dc9r]

Hello. Tell me, what is the name of this updated engine model? I'm interested in the full name, Mercury F25.....????

[@rustyrussell7613]

I had a Yamaha 25 4 banger mounted to 390 explorer outback top speed 51 kmph

[@codycarnathan7257]

That transom common over on yall side of the world?

[@Avv45]

So the only difference I can see really is a better tiller…and only a slight weight advantage

[@themeettrees]

new is faster out of the hole due to less weight.

[@omieyouknowme]

Buy the tohatsu 5 year warranty vs 3 for the merc. Same motor.

[@tieoneon1614]

with a shitty tiller handle. I love the new Merc, the extra $ was well worth the ergos and all controls on it.

[@omieyouknowme]

@@tieoneon1614 ya the new tiller handle from mercury is pretty sweet. Wish they had a heated grip with the smaller models. Tohatsu handles are not bad still but still crazy that any tiller handle costs more than a steering wheel and fwd controls.

[@nishownnishow1286]

Per litre milage

[@davidlove7825]

This new motor is not a Tohatsu!

[@jonnymartin9295]

Yes it is. Same as Tohatsu MFS25D.

[@davidlove7825]

@Jonny Martin Yes it is. Not sure where the dealer got his information from. I subsequently purchased one. If it had been a pure Mercury product I would not have done it. I also have the vessel view mobile which I will try next time. Extremely happy with it.

[@williamlanier9]

​@davidlove7825 I have Vessel View on mine and I love it!

[@garyanderson9535]

Compression ratio

[@timsussenbach5376]

Meanwhile my tohatsu weighs 51 kg

[@ADD_50]

Same motor.

[@jeffalden6769]

Mercury owns that company

[@omieyouknowme]

​@@jeffalden6769 mercury owns tohatsu. Hmm not true. Tohatsu is very much independent made motors for mercury Nissan Evinrude just like Yamaha did for mercury for few years.

[@gunsandrotors8704]

​@@jeffalden6769 mercury does not own tohatsu. Tohatsu builds 30hp and down for merc.

[@chrispeterson1247]

meanwhile my 2001 25hp 2 stoke weighs nothing lol

[@mikeadam6776]

the fore stroke has so much better fuel economy there is no reason to entertain the two stroke.

[@aaronwheeler6737]

Rebranded Tohatsu

[@stirlingmatteo3126]

'Promosm' ✅

[@user-yw7yb6dc9r]

Hello. Tell me, what is the name of this updated engine model? I'm interested in the full name, Mercury F25.....????