1987 Mercury 20XD idle adjustment

zackduncan40

Petty Officer 3rd Class
Joined
Feb 8, 2016
Messages
89
Hello I have a 1987 mercury 20XD and this may be a dumb question but how do you set the idle on it? It idles a little bit high and I don't really know how to adjust it. Thanks!
 

flyingscott

Fleet Admiral
Joined
Apr 8, 2014
Messages
8,158
Is this a tiller motor if it is. Up by the recoil safety you will see a screw with no head on it should be slotted for a screwdriver. That is your idle adjustment screw. It is right above the throttle and shift pulleys.
 
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