1. Take the valve at the 3o'clock position and drill it out with a
3/16" drill bit.
2. Take the valve, SAND the newly modified valve setting to remove
burs... Take it then and scrub it up in some
warm soapy water with a brush to get all the dirt and metal shavings
out...
3. Relub the valve and put it back in your gun and your ready to Rock
n Roll....