I could not find the old thread on this. How do I disable the compression release?

I have been playing with one of my briggs 40s. It runs well with the magneto but the starter is a pain. I made up a hub for an EI unit. It idles down to less than a 1000 rpm with the magneto. A little lower and the compression release starts to click. It would be fun to see how low I can go. It'll be nice to see if I can pick up some RPMs too.