I have an 85 Johnson 6 hp and am new to Outboard motors. I don't want to neglect the "lower unit" of the motor as well. As I bought this motor used- what is there for maintenance/tune-up of the lower unit? Gear box or water impeller and what needs to be maintained with these units?<br /><br />Secondly--- how to access all this in the lower half of the motor?<br /><br />Thanks all for alot of past advice and knowledge!!!<br /><br />Jason
