1985 Mercury 18 XD fast idle adjustment

Hey everyone,
I have a new to me 1985 Mercury 18 hp (XD) (Serial A115159). Engine runs well but at low idle is a little rough.

I see the fast idle adjustment is under the choke face plate (highlighted in yellow). I want to make sure that I am proceeding correctly to adjust the fast idle before I screw something up. I probed the face plate over the weekend and the cover seems to be a sticker. Can anyone confirm that I am supposed to remove the sticker to get to the fast idle adjustment knob, or refer me to a better procedure to do this?

Thank you, I appreciate any feedback given.

That screw in the carb is the low speed fuel mix not the idle speed screw. Adjust it 1/8" at a time to see if you can get the idle smoother.

The knob in yellow adjust idle timing.-----Screw item 16 on front / upper part of the carburetor adjust slow speed mixture.----There are lots if items identified as #16 ( carburetor repair kit ) ----I think it is obvious as to what to adjust for idle mixture here.

Nothing in that pic adjusts the idle!!! That knob in yellow is an adjustment for the idle for cold starts only. #40 in this pic is your idle screw http://www.marineengine.com/parts/m...usa/throttle-and-shift-linkage-mercury-manual

The picture in post #1 does show the mixture screw for low speed performance.----The poster says that idle is a " bit rough " and adjusting the mixture may help smooth it out.

Post #2