2004 175 hp Johnson

Sorry, I don't have the exact model/serial number of the motor on me right now but it's the carbureted model

I'm going to buy a 'cat with this motor. The owner said the motor has approximately 270 hours on it and has never had any problems except for the power trim going out once.

What I wanted to know was the good and bad about this motor. Are there any specific parts that have a history of failing or whatever... anything I should look out or expect to have to repair or replace anytime soon especially with the amount of hours it has?

Thanks!