1996 EVINRUDE 60HP MYSTERY

[David@GC]

1996 60hp Evinrude looses power and drops various 2 cylinders when put under load. Problem is erratic but usually presents after 15 minutes running OK. (Under warranty service a bolt was finally found in one carbi that appeared to have been dropped during assembly and provided for a frustrating first 18 months of ownership.) Current problem still exists after dyno testing proved negative, carbis cleaned, new plugs, new impeller etc. Is there any way to test a powerpack or isolate electrical fault that is not consistent with 2/3 cylinders? Anyone with similar problems or suggestions please advise.

 

[JB]

Re: 1996 EVINRUDE 60HP MYSTERY

Ahoy, David. Your powerpack may be failing when hot. Crank her up in the drive on the hose, with the hood off.<br /><br />Get a hair dryer and heat your coils, one at a time. Then heat the powerpack. If a hot-short is the problem that should cause it to misbehave.<br /><br />Good luck.<br />Red sky at night. . .<br />JB

 

[clanton]

Re: 1996 EVINRUDE 60HP MYSTERY

Not sure what year , but flywheel was changed, check for loose magnets in flywheel. Check ignition system with peak reading meter, engine running under load. Does alarm system work? A shorted alarm horn will set the power into S.L.O.W. After you do what J.B. suggested.