What do you think are the best manuals to use for motor repair and maintenance?<br /><br />I'm specifically interested in buying one for my 1973, 135hp Evinrude, but also interested to know across the board what people use. Also interesting to note the difference in price for what it's worth.<br /><br />1. Clymer ($27)<br />2. OEM Service manual ($40)<br />3. Seloc ($27)<br />4. Other _______