davidverrall Posted April 29, 2018 Share Posted April 29, 2018 So, I have a kwa kz75. If I use ultra gas I get half a mag and the gas is done. If I use green gas I could get about 2 mags worth but it doesn't load the BBs correctly so I get about 2 then it stops working and I end up with a load of BBs jamming in the barrel. Any suggestions on what I can do to stop this? Link to comment Share on other sites More sharing options...
Guest Posted April 29, 2018 Share Posted April 29, 2018 Is it unmodified, clean with no broken or damaged parts? That’s where I always start, strip it down completely and inspect everything very closely. Is it designed to be used with a CO2 mag? Link to comment Share on other sites More sharing options...
davidverrall Posted May 1, 2018 Author Share Posted May 1, 2018 I have stripped it, cleaned it and applied a small amount of silicone lube. This made no difference. It's designed to use green gas so I have no idea why it won't work😣 Link to comment Share on other sites More sharing options...
Guest Posted May 1, 2018 Share Posted May 1, 2018 Something must be worn or broken somewhere, is the loading nozzle return spring OK? Link to comment Share on other sites More sharing options...
davidverrall Posted May 1, 2018 Author Share Posted May 1, 2018 It has two which both look perfectly fine and if I pull it by hand it snaps back quickly Link to comment Share on other sites More sharing options...
Guest Posted May 1, 2018 Share Posted May 1, 2018 So it’s leaking gas through the firing circuit, if it’s not the cycle sticking. You our need to find out where Link to comment Share on other sites More sharing options...
davidverrall Posted May 1, 2018 Author Share Posted May 1, 2018 I was going to replace the main piston seal to start, I'll see what happens when I do that. Thanks for your help, it's much appreciated Link to comment Share on other sites More sharing options...
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