Have you ever tinker with S&S carb? Then you know what this Tweaky does! Installation takes a minute or two. You can adjust idle with tips of your fingers without screw driver or knife. Some people warm engine up with enrichner(choke ,some call it) I found that method tends to foul plugs prematurely, simply by feeding too much gas for warm-ups . But you can use Tweaky to raise idle up just enough to warm it up. Tweaky is compatible with any air cleaner covers.
Available at online store