i;m having problems with my newly bought FWB100 (from egun.de).
When i got it everything was OK. After 100 pellets (and some dry-firing) it started to not eject all the compressed air (when opening the pump lever air would escape, or if i cocked the gun manually, a second burst of air would come out without pumping) and the pellet flies visibly slower.
I read that the number 9 screw controlled the striker spring, so i screwed it in a bit. That solved the problem for a few shots, than the problem reappeared.
Now i got to the end of the screw length (no more travel space) and the gun still manifests the same problem.
If i leave it alone for some time (~10 minutes) i can get a couple of correct shots and after the problem reappears.
what could be the problem? the striker spring? the valve? the seals?