"Jim and Becky" wrote in message
...

I'm pondering (always will be) a boat with a pair of 1988 Yamaha 200's.
The seller says they have 1025 hours on them.
Assume they weren't used commercially and have been well taken care of.
What is the life expectancy (total hours) of these?
Lets say we call them obsolete when they drop more than 15% of their
original output. I'm in an area I know nothing about but some power loss
might be expected due to worn pistons, etc.
All I can think of is one motor dying about the first of July and getting
the boat back in the water around mid September.
I remember reading 10,000 hours for an inboard gas, maybe twice that for
an
inboard diesel?

Sound like a lot of money you will be laying out here.

If you can, take them in and have the basic checks done on them, visual,
compression, spark, gearcase pressure and vacuum, test run, et al.... It may
cost you a few bucks, but these checks could save you a lot of hassle and
cost down the road.

Secondly, don't trust what the other person is telling you. He might not
even know there might be problems with these engines, as I just found out
the other day dealing with another product that was for sale. Just my visual
inspection told me this engine had many problems. The basic checks will tell
all.