Originally Posted by
Konigballer
I would dis-assemble, make sure all parts are there were there 'sposed to be, then relube generously and re-assemble. Make sure your front grip and thumb screws aren't on to tight, then with the gun aired up crank up your velocity until the gun vents out the back of the reg hole, then crank it down to lower the velocity so it doesn't vent. Try test firing it then to see if it cycles.
I belive the online manual you can download says something about a 'dead trigger' too.