Mixture setting on 6 horse Tohatsu?

[pawncob]

First time out, my 2009 Tohatsu 4 stroke wouldn't run without full choke, so I stripped the carb down and did a soak in carb cleaner. It now runs O.K., but the mixture screw is screwed right in, and it still runs happily and revs freely. I haven't yet tried it under load. Is it alright to run it this lean or should I back it off a turn or so?

 

[TOHATSU GURU]

Re: Mixture setting on 6 horse Tohatsu?

Are you asking about the idle adjustment screw or the hidden air mixture screw that should NEVER have been touched?

 

[pvanv]

Re: Mixture setting on 6 horse Tohatsu?

If you have disturbed the pilot screw (you would have needed to remove a brass plug to gain access to it)... you will need a good shop tach and a good ear, and will need to try to get the idle mixture setting back to the proper setting, as though it was an old-style, pre-EPA carb.