Question on engine hours

[SAB1]

Asked the same question to my mechanic couple years ago. A lot depends on how it's used as mentioned above but he said general rule of thumb is when they hit 1200 hours they start to get tired. Mine is a 1997 with 1000 on it but a lot of those are trolling hours with no skiing/tubing and being well maintained. I expect to 1500 or better of it.