How many hours can you expect to get out of a 4 stroke?

[DB]

I get so many conflicting opinions on how many hours you can reasonably get from a 4 stroke Yamaha I wanted to see what ya'll think....what about a 2 stroke Yamaha.

 

[Fishtales]

I'd say it depends. In many instances, the age of the motor is just as great a factor as the hours as people don't put that many hours on them. That being said, I've heard of 2K+ hours very frequently, 3K many times and even a few 4K hours for engines that are run a lot each season. Lets say the average hours per year is 350, then I'd guess 10-12 years if properly maintained and expect a few larger repairs mixed in.

 

[Legend]

I would say that they have not been around long enough to establish a good number - you hear some commercial guys talk about 3,000 hours and running strong

 

[ahill]

Commercial fisherman in my area report 4000 hrs & running strong with proper maintenance.

 

[gradydriver]

I've heard it's not the amount of time on the motor it's the amount of fuel burned through the motor...that will give you a better feel for how much time you have left...you could have 1000 hours trolling or 1000 hours running 5500 RPM which motor would you like to buy used? :hmm

 

[Get Grady]

I had a mechanic do an engine survey for me the other day and he owns a set of F225's with 8600 hours on them. He has only replaced a wiring harness and an oil pump of some sort. If you run them and maintain them they will last a long time. Yamaha, for the record states they are 3000-5000 hour engines. The average person only puts maybe 100 hours a year on their boat.

 

[HMBJack]

I PM'd a guy who reported 10,000 hours on a V6 4 stroke Yamaha (225 I think).
It was salt water use and he operated a charter boat business.
Original power head and no major repairs. He just said he maintained it "by the book".
I do close to about 150 hours per year and I'm sitting on 438 hours right now. So I hope to go a while before I need to even worry about this. These Yamaha four strokes are the best out there IMHO (close 2nd goes to Honda and only because their service network is much smaller).

 

[magicalbill]

I'm guessing it's like any other engine; The more you run it, the less chances for problems.
My 1999 Toyota Corolla has 367,000 miles on it and I drive it everywhere all the time.
The pro charter guys replicate the same scenario on the water; those engines stay lubed up and loose and don't sit idle. I've heard that's when the problems start.

Now if I could only run my F200's more often....