How many very new 4 stroke engines will be running trouble free at age 50 to 75 years old ?

rolmops

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The problem will not be the engine, because as the oldies of today, they will not be worn down by heavy use ( at least not the survivors). I do think that 75 years from now, gasoline will no longer be a popular energy source, but rather a thing of the past.
 

racerone

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Some of the newest parts motors that I have are 4 strokes.----Early 2000 models.----Too expensive to repair.
 

cyclops222

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Kerosene, coal and wood nuggets are still being used all over the world.
Horse drawn carts ? Human drawn carts ?
 

bajaman123

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Yeah...good question. Unlike the good old days of two stroke engines and their wonderful simplicity...the modern 4-strokes are a marvel of technology and...complexity. With complexity comes unreliability...or at least limited life-span. Gasoline will still (and ALWAYS) be the fuel of choice for marine engines (as well as cars) so no issue there...but in my humble opinion it will simply come down to cost...rebuilding/repair vs. replacement.
 

Lou C

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The availability of countless aftermarket parts for the small block Chevrolet make repairs and rebuilds easy and practical. Not so for high tech modern outboards.
 

racerone

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Taxes will drive up the shop labor / overhead costs.-----Tariffs will drive up the cost of parts and new motors.----Regulations / fees drive up the cost of boating.----In many places you can not simply put an affordable boat in the water anymore to have a day of fun.
 

Lou C

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this is the one real advantage of older I/O boats with simple GM marine engines, you can buy a decent junkyard engine and with some help from a good machine shop and aftermarket parts, go boating.
or even a complete reman from any number of online retailers
 

racerone

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Simply amazing how the availability of parts has changed in the last 20 years or so.------Too many short lived models / changes.
 

Lou C

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What I see with 4 stroke outboards is that the OEMs are the only source of parts. That keeps prices very high.
 

cyclops222

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We are not crooks or robbers !!!
You just do not have enough money to buy our products !!
 

airshot

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Due to labor and repair costs, the newer four stroke engines will not need much of a repair to become a parts engine. My local marine repair dealer says it is far cheaper to just replace a short or long block, rather than due a teardown to make a repair....at least for warranty repairs. Once the warranty is past, any serious repairs become to costly. In my area, there is no problem getting your 2 stroke repaired, and most repairs are very affordable compared to the replacement cost for a new motor. Many Mfgrs have now extended their warranties long enough to get the motor loan paid off.
 

Lou C

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While I know intellectually I "should" have an outboard here in the salt pond, I just can't bring myself to spend that kind of coin on just an engine! Yes I/Os are a pain here, due to salt water moorage but the repairs are generally simple, can be done by competent DIY guys, and you can even make do with nice fresh water used parts from ebay like I do lol.
 

JimS123

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My collection of 2 strokes is pretty big. But most are collectables. The two that are "daily runners" are 73 and 51 years old. They both run very good.

I have five 4-strokes on 3 boats. They were purchased during the period 2015-2019, when I was between 66 and 70 years old. I don't know what their longevity will turn out to be, but I'm not worried.

I got rid of my last I/O in 2019, and I was sorry at the time. I finally realized that it should have gone long before.
 

cyclops222

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Yamaha was found to be using terrible scrap Aluminum for cast parts. Engines waited for months.
 

dingbat

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That $525 price in the ad is roughly $6,000 in today’s money.
Can buy a new 25hp today for half that price.


IMG_3549.pngIMG_3550.png
 

airshot

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Can't buy a new 25 hp in my area for that little of money.
Reality is closer to 4500 bucks, Mabey 4K for a manual start.
 
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