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Mercury or Yamaha main motor

6371 Views 92 Replies 43 Participants Last post by  Paddler
Ok dogs it’s time to get a new main motor for my 20’ raider. Currently has a 90 horse 2 stroke mercury on it. She pushes it just fine but is cold blooded as hell. And wanting to get away from 2 stroke oil. I have a 2020 4 stroke 25 horse Yamaha I’m putting on for a kicker”runs flawless”. Looking at a 115 since neither mercury or Yamaha sells a 135 that my boat is rated for. Both brands go from 115 to 150 with nothing in between. So in your opinion what is the best salt water motor. I fish salt 80 percent of the time. Thanks for your input. Good or bad
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You are leaving out the Tohatsu and Honda line. Tohatsu = 5 year warranty Honda is same

115hp motor is 359lbs for 20” shaft 2.0L block from mercury. You can go with largest displacement or for lowest weight. They are all pretty decent now days.
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In the mid range motors Honda is pretty easy to eliminate. It's a 121 pounds or 34% heavier than the Mercury. It's got to have a huge advantage to overcome that additional weight.

It really comes down a Ford vs Chevy question. Both Mercury (Tohatsu) and Yamaha are excellent motors. When I repowered several years ago it came down to a few factors: availability and price. At the time the decision was easy as Yamaha was over a grand more and nine months out on availability. I've been very happy with my Mercury.

If you do go with Mercury it's worth upgrading to the CT (command thrust) model. It's the 150 lower end on the 115 motor which has a bigger gear case and better gearing. This lets you run a bigger prop which will give you a much better hole shot when you're fully loaded. It was a $300 upgrade when I bought my motor.
You are right, Honda is heavier in that hp range, but I buy a Honda for it's reliability and take the loss in weight.
Tohatsu then stands in it's own, with 5 year warranty. Believe up to 115 tohatsu is in house I think the bft Honda comes in at 150hp for tohatsu
That leaves the merc yammie suzy with their 3 year warranty. Find what's available and who can service it closesest to u.
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Honda and outboard reliability? I didn’t know those terms were synonymous. Had a 9.9 that was completely junk and a 150 that was equally crappy. Bought both new. Both complete garbage
I have not touched a Honda older than 2010 so that is interesting to know they had corrosion issues. I also deal with fresh water only here
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