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How Many Hours Should My Yamaha Last??

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How Many Hours Should My Yamaha Last??

Old 12-08-2011, 08:52 PM
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Default How Many Hours Should My Yamaha Last??

Hey Gang- I am wondering from experience of other THT Members what the lifespan is of my 1995 Yamaha VX 250 Saltwater series 2 Stroke? It has 900 hours now with good compression and runs great so assuming it is properly maintained and treated with a little TLC, how many hours should it go?
Old 12-08-2011, 09:22 PM
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My guess is that it will corrode apart before you can wear it out. It should be easily capable of 3500 hours before it has any real mechanical decline.
Old 12-08-2011, 09:38 PM
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I doubt anyone will ever wear out an outboard, something else will kill it long before it wears out, an over heat or an oil system failure, lean burn from bad fuel, over propped or a hundred other things, then corrosion will slowly but surely be eating away it it, so forget the "how many hours" question, it is a matter of maintenance and good luck.
Old 12-08-2011, 09:57 PM
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Originally Posted by noelm View Post
I doubt anyone will ever wear out an outboard, something else will kill it long before it wears out, an over heat or an oil system failure, lean burn from bad fuel, over propped or a hundred other things, then corrosion will slowly but surely be eating away it it, so forget the "how many hours" question, it is a matter of maintenance and good luck.
Ah, an honest man. If you are a commercial user, you may well wear it out, but a recreational user usually ends with some kind of event. In that engine, keeping it decarboned and using and excellent oil will help to postpone said event.
Old 12-09-2011, 01:47 AM
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We have about 2500 hours on a 2001 SWS2 200. Runs like a champ, with compressions maybe 5 - 10psi down on spec.
Old 12-09-2011, 07:15 AM
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with some of those high hours two strokes i would recommend running some RING FREE in your fuel tank to clean that carbon build up right out.

They will last for a long time if the proper 100 hour or once a year full service is being done. Bring it to a Yamaha service shop and you should be able to enjoy this motor for many, many more hours.
Old 12-09-2011, 07:16 AM
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Originally Posted by Aliboy View Post
We have about 2500 hours on a 2001 SWS2 200. Runs like a champ, with compressions maybe 5 - 10psi down on spec.
as long as you maintain the 10-15% max difference from high cylinder to low cylinder then an even wear like that accross the board is totally acceptable
Old 12-09-2011, 07:40 AM
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No way to accurately guess,too many variables. However, checking the websites of name brand boats (interpid,etc) ,I noticed that seven out of ten older ones (07or so) have either very low hours and don't count or have replaced/rebuilt engines. Especially those pushing heavy rigs (30' or longer). My conclusion,when buying a used one with some years on it pushing a 30' or longer rig,figure on the cost of engine replacements coming up very soon in your offers..
Old 12-09-2011, 09:10 AM
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Thanks to all. Mine is pushing a Pursuit 2470 that I have restored and updated. It will go as fast as I want to go especially with the conditions we have on the west Coast. Great feedback on the Ring Free, that is one thing I will make sure to add to my fueling routine. I now use Marvel Mystery Oil, top grade 89 Octane fuel with Techron, only Yamalube 2 stroke oil, and Marine Fuel Stabilizer. I flush the engine a long time with Salt Away and fresh water (with engine running) after being on the Ocean. I hope to keep her running for a long time then. Thanks Again Guys!
Old 12-09-2011, 09:55 AM
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Its kinda , how much longer you will live,
Drinking alcohol (in your fuel)E10 is bad.
not changing oil , Plaque builds up,clogs arteries ,filter bypasses = bypass heart surgery or stents. Fuel (blood) pump quits because clogs caused heart to beat faster, maybe runaway pulse and the heart(fuel pump) dies.I got real hot when I had my heart attack ,caused by a clogged newly install stent in left ventricule.
Corrosion .its like colon ,prostate cancer.

how well your parents and grandparents take care of themselves.
How well do you take care of yourself. Never take it to a doctor(mechanic) for a check up.
EKG = computer test.Listening to the engine with a stethiscope.Irregular idle =Afib
Get the oil tested =blood test.
run it hard periodically = exercise
tread mill = dynamometer test

so the disciplines are very similar.
Old 12-09-2011, 10:01 AM
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I had over 3000 on the 1989 75 2 stroke Mariner (Yamaha design) when I sold it. The power head was still strong but all of the bolt on stuff was going bad (stators, starters, tilt trim, lower unit etc).

I just rolled over the replacement engine with 3075 hours, a 2002 Mercury 4 stroke 60. There were no real problems but I knew stuff was going to start failing.

I am breaking in a F70 Yamaha as we speak.
Old 12-09-2011, 12:44 PM
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Default pay up your towing insurance

go for the unlimited coverage and run it hard

then you will know
Old 12-09-2011, 04:57 PM
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I just worked on 2x 2006 f250txr with 3600 hours on each they were holding together well, all original anodes were in fair shape, lower units still tight, some surface corrosion but nothing i have not seen on engines with 1000 hours. When the owner goes out of venice they typically run 100 miles out and let the engines run the entire day.
I was very impressed with the condition considering he did little maintenance outside of oil changes.
Old 12-09-2011, 05:23 PM
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There's a commercial crabber around here who figures he has 3500 hours on a 2000 250 OX66.
No way to prove it but, I believe him.
Old 12-09-2011, 06:00 PM
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If you maintain the motor good it will keep running strong for at least 2500 hours before you really start to see the decline in top speed though it will only drop 1-3 mph, same thing with accleration, by then you might want to change the fuel lines and oil tank, and any other small thing in the same category.
Old 12-09-2011, 06:02 PM
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I have a pair of 2001 250 OX66 that I am the origional owner of and installed hour meters at time of installation. Other than typical minor issues I had to rebuild the powerhead on the stbd unit at ~1100 hours (Flagship marine-Punta Gorga Fl.) Currently I have 2535 hours on the motors. I also have taken compression readings when they were new and every 500 hours since. The lowest compression numbers are within 2 psi of the origional reading. I also maintain them to the highest standards I am aware of. They are pushing a 31x12 custom built Morgan I run them at 4200-4300 cruise burning 24-26 gallons/hour doing 24-27 knots.

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