Quoted from djsoup:
So I figured out the issue. The white bushings (on the fork mechanism) aren't fully depressing the silver switch on the mod when it rolls all the way back. Unfortunately the housing of the mod doesnt sit far forward enough on my machine, so while the bushings slide back and touch it, it doesnt push it back enough to trigger the mod to open/close.. in order to get this to work I had to move the mod/housing up so when the bushing rolls back it actually hits this silver switch and triggers it. Right now I just have tape holding it down, but I think may need to drill some new holes into the bracket to hold it in place, since this new placement isnt in line with the current holes on the mod bracket. I was just about to give up on it.. but glad I didnt! This is a really cool mod and it adds a lot to the game now. Hope this helps you guys with yours!
Just re-bend the switch actuator out more. This is a common problem and an easy fix.