I put 3000 hours on my old Mariner/Merc 75 2 stroke but it was George
Washington's hatchet by the time I was done. I rebuilt or replaced almost
everything that bolts on the engine. (electrical parts, tilt hydraulics, carbs
etc)
I never had to go into the foot or the power head tho and it was running strong
when I sold it.
Let's see how the 4 stroke does.