Trigger wont gas up!!!!

[MagMcBride]

I have a Mag with a 68/3k Max Flo and when I gas it up the air goes into the gun and valve, but the trigger pin does not budge....is the problem in my on/off?

P.S. I adjusted the trigger pin, and now when I hold down the trigger, it goes full auto...Is it the triger pin and if so what do I do? Please help

Edit: lmfao on/off pin in backwards!

[ClouD]

full auto is good