aaaahhhh, I'll be paying attention to this one....
Hears my take, Its a machine, 10 year old motor with 200 hours on it has a lot of shelf time. rust in the heads, dry seals and gaskets... moisture, bird nests, what ever... if properly maintained, I know several folks with several thousand hours 2,000 and one fella pushing 4K, on their Yamahas and they still operate great and are still "Turn the key reliability" good!
there will be a lot to disagree with me, but I want something that has been maintained properly on a regular basis and used responsibly. 2 cents.
Yamaha 4 strokes can get 5k plus.....I've got 1400 on mine right now and they are only a year old. Like Jim said though, if they are being run regularly it's one thing, if they are sitting it's another.
No set rules but if I could $...I would personally want to find one that was well maintained with documentation on servicing. Still under warranty less than 3 years old and around 600 hours or less. Just looking to increase chances for longevity...
I AGREE WITH MARK EXCEPT I WOULDNT WORRY ABOUT THE 100-400hr servicing. Its so easy it takes me 10 mins to do.
I wouldnt touch a used boat with over 600 hours unless it is warrantied.. Thats just me though. My engine warranty is good till 2020.
If you are looking at a boat, no matter the hours, have a mechanic go through it. Things that often get neglected are thermostats, water pumps, spark plugs, and lower units. A mechanic will be able to go through the motor and get a good idea of the level of care that has been taken of the engine.
Depends on the motor and what it was used for! I know of a guy that has 2200 hrs. on a Yamaha but most of it is trolling. Another person has one that use to ski with it a lot and the shaft are worn very bad in just over 600 hrs.
It's all in how there taken care of . Run regularly at normal speeds and 4-5k hours would be the life of an outboard . JMO slamming the throttle down and running it wide open drastically takes away life of a motor . 1k hours max on motors that are not taken care of .its worth having a mechanic looks first .