Originally Posted by Fishoutawater
I'm having the same issue. And if I hear dead battery one more time I'll go crazy...
When first gassed up if the velocity screw is at minimum the bolt doesn't even set and just barely cycles at max velocity. I've cleaned/oiled everything inline reg, lpr, ram exhaust I'm out of ideas. Just have to open the solenoid but its cycling normally an I can't imagine it being blocked.
It's all about balancing the regulators and proper dwell time. Assuming there is nothing wrong with the gun of course. If your velocity is at zero then no air is going into the LPR which controls the bolt.
Turn your LPR screw flush with the metal cap. Turn your velocity to zero then get in front of a chrony and slowly increase it as you fire a couple of shots after each adjustment. When you get to the velocity you want, stop. If you seem to reach a point where your velocity is not increasing anymore stop adjusting. At this point your dwell setting is probably too low. Go into the settings and make sure your dwell is at least 8-9ms. This is a common problem. Without enough dwell time your solenoid isn't staying ON long enough which means your ram is not hitting the valve hard enough.
Once you have your dwell set, and your LPR set, you should be able to reach 290-300 no problem. These are pretty much stock, trouble free settings. If your gun still can't reach velocity at this point then:
-you may not have enough battery power for the solenoid(haha). Cheapo batteries are usually no good out of the box. Duracell or energizer only! No gas station batteries, they must be fresh.
-you have an air leak......which should be easy to hear.
-Your HPR while lubed and clean, may have the shims in wrong, or be missing shims causing your HPR no to function properly.
-You have the springs in your LPR backwards
-you have a malfunctioning QEV causing air to drain too slowly
-You have a dying solenoid
-If you have a non-stock ASA, there may not be enough air flow through it