Hi all. I am buying my first boat for my son and have a found good small runabout with a 25hp Johnston outboard. Its had 3 owners and seems to of been really well looked after and flushed in fresh water as every use. The owner mentioned that a compression test was recently done on the last service and came it at 105psi. Does this seem ok for its age? Anything that can be recommeded would be much appreciated.