1999 OX66 250 Life expectancy ???

[ttles714]

What would you expect the life expectancy of a 1999 250 hp Yamaha Salt Water Series to be... .Running hours used in salt water ?? I'm looking at a boat with an ox66 250 with a 1000 hours ... any thoughts ? I thought it might be at the end of it's life ... ??????

[rodbolt17]

mostly depends on the maint and repairs.
was it done?
was it done correctly?

[ttles714]

serviced

it is supposed to be well serviced by Yamaha Tech yearly ... what ever that really means ... if it was, what do you think would be a life expectancy... I realize you do not have a crystal ball.... I was under the impression that 1000 hours was about it for any outboard... ( with the exception of the old Ficht motors !!)

[ausnoelm]

Plenty still running with twice those hours, also plenty in the scrap bin with half those hours, engine life is impossible to estimate, most motors never wear out, something else kills them long before that, like neglect, rust/corrosion, a dud water pump or forgetting to mix oil in the fuel.

[Tucker]

Check compression for starters. I you buy the boat be sure to service the oiling system. Remove tank, flush, replace filter, adjust linkage. spend a couple hours searching here to get all the maintenance procedures down.

[TownsendsFJR1300]

Besides the above,

Flushing after use is very critical...

I'd ask about that AND if possible, pull the thermostat and look inside the block/cooling system. Pitting, crappy thermostat will give you a good idea of the internals..

If its really crappy, walk away or be prepared to at least pull heads, etc, down the road.... Major pitting in the block, run....

[markmashburn]

the 250 !!!!!!!

it is supposed to be well serviced by Yamaha Tech yearly ... what ever that really means ... if it was, what do you think would be a life expectancy... I realize you do not have a crystal ball.... I was under the impression that 1000 hours was about it for any outboard... ( with the exception of the old Ficht motors !!)

if it wasn't run to death 2000 hrs easily those engines are like the ole 7.3 powerstroke they take abuse and keep on running I have a ox66 250 on a 21 cape horn great engine and is good on fuel

[markmashburn]

the 250 !!!!!!!

Plenty still running with twice those hours, also plenty in the scrap bin with half those hours, engine life is impossible to estimate, most motors never wear out, something else kills them long before that, like neglect, rust/corrosion, a dud water pump or forgetting to mix oil in the fuel.

this guy is so right !!!!!!

[rodbolt17]

repowered one of my crabbers march of 20015,his old 2010 2 stroke 150 had 5200 hours on it, was still running but #2 wristpin was very loose.

[pstephens46]

What is a wrist pin?

repowered one of my crabbers march of 20015,his old 2010 2 stroke 150 had 5200 hours on it, was still running but #2 wristpin was very loose.

Curious as I have an F150...

[boscoe99]

Curious as I have an F150...

The connecting rod small end pin that attaches the piston to the connecting rod. Gudgeon pin in the UK.

https://en.wikipedia.org/wiki/Gudgeon_pin

[pstephens46]

Rodbolt question

repowered one of my crabbers march of 20015,his old 2010 2 stroke 150 had 5200 hours on it, was still running but #2 wristpin was very loose.

I wonder if Rodbolt knows whether this crabber ever had timing belt replaced in this motor? Got his money out of that one....

[erniefish]

I wonder if Rodbolt knows whether this crabber ever had timing belt replaced in this motor? Got his money out of that one....

If it was a 2 stroke I would bet it was never done and never will be done

[erniefish]

I had a 1989 175 , do not remember model number , over 5000, hrs , I was single and fished or hunted out of that boat almost every day , sold it running ,but oil would only fill by using emergency switch, if I knew then what I know now ( thanks to you guys ) that would of been fixed

[pstephens46]

Hah! Totally missed the 2 stroke description. Never Mind!!