If you fish a lot keeping your outboard engine healthy is important! Every 100 hours you should do your regularly scheduled maintenance on your engine. A boat shop typically charges 600-900 dollars for a 100 hour service, but if you are mechanically inclined you can do it yourself at home.
In this video I will show you how to change the oil on a 250 Yamaha SHO. This can be done at home in about 20 minutes and save you a bunch of money!