where is my idle adjustment screw?

orrismic

Seaman
Joined
Jul 10, 2004
Messages
60
I have a 1990 omc 3.0l. Anyone have a picture or diagram?<br /><br />Thanks.\\<br /><br />mike
 

hoot

Chief Petty Officer
Joined
Sep 8, 2002
Messages
434
Re: where is my idle adjustment screw?

no picture here. i have a mercarb 2bbl. the idle screw is not on the carb. it is on a bracket on the back side of the carb. it adjust the throttle position. watch your throttle linkage around the carb and see if you have the same thing.
 

orrismic

Seaman
Joined
Jul 10, 2004
Messages
60
Re: where is my idle adjustment screw?

Is it the one with a spring on it around the back side
 

orrismic

Seaman
Joined
Jul 10, 2004
Messages
60
Re: where is my idle adjustment screw?

One more thing, Should this only be adjusted on the water,in gear, and at opperating temp?
 

Reel Poor

Vice Admiral
Joined
Jan 29, 2005
Messages
5,522
Re: where is my idle adjustment screw?

Idle speed should be adjusted on the water, in neutral, and at operating temp, TO SPECS.
 
Top