Brand new carb. I opened the box and the slide was all the way down. I put the throttle cable into the notch and put everything back together. Now the slide is open about 1/8”. I reassembled everything and, like I figured, it revs through the roof. How do I get that slide to seat down in there farther? It’s in the notched on the side of the carb housing and the idle screw is backed way out, so it’s not hitting that.