Re: 93' 70 h.p. Johnson
It was a great engine in '93, Spy. What it is now depends on the care it has had.<br /><br />If you have the opportunity, do the following (in order of importance).<br /><br />1. On the water demonstration. Engine should start promptly, idle well, accellerate smoothly and run at WOT for several minutes without overheating.<br /><br />2. Compression test. All three should be over 100psi and within 10psi of each other.<br /><br />3. Inspect gearcase oil. Should be dark, not milky. No water in gearcase.<br /><br />4. Inspect sparkplugs. Should be tan, with little or no deposits. None should "clean as a hound's tooth".<br /><br />An engine that passes all of the above is in excellent shape.<br /><br />An engine that passes 2,3, and 4 is probably fine.<br /><br />Good luck.
