Reply To: 2000 Johnson 50hp 2 stroke questions.

[Don]

Cool! Now you have the winter to review the complicated sync procedure and ask questions so you can do it correctly. These engines are not the smoothest idlers, so don’t try to achieve that…Better to leave it slightly rich/rough than have it dialed in to the point where it might fade at idle due to being slightly lean…
And, like Dan says, check the compression. These loop scavenged engines won’t tolerate too many imperfections/damage/scuffs/scores, poor idle will usually result. I am always suspect when I see a 2-3cyl OMC with “jacked up” sync settings…This usually means someone has cobbed up the sync settings in an effort to get a worn out engine to idle OK…