How many hours per year on an outboard would you consider normal use?
I know several factors but didn't know if there was a general number like the 12 to 15 thousand miles on auto's?

80 a year is about normal for a Texas boat.
Now, how it was maintained, and what fluids and fuel were used will make a big difference, much more than just hours. I'd rather buy a ten year old well maintained motor with 800 hours than one that's sat for five years without being used.

Or had cheap oil run through it it's entire life. There is a difference..