Hi,<br /><br />I was handed down a boat from someone, and have been having too many problems with the engine. Its pretty old, so I'd like to replace it (1975 50 HP johnson outboard) with a more dependable engine. Can someone give some details on what is required to get a new engine? Do I have to get the starter and steering system replaced as well? How do I know if my new engine will fit my boat? Two stroke vs. Four stroke? Is there a more inexpensive alternative than going through my local boat repair shop to getting an engine? Any thing to be careful of?<br /><br />Thanks for your help...