Cheers guys, got it working now!
But i now have a new problem!
Once shooting 15bps consistently for about 30 secs, the marker stops fireing and just fires a small amount of air out of the soliniod! there is still air in the marker the reg reads arouns 175 psi!
After leaving it for a couple of seconds then pulling the trigger it slowly starts to fire again!
any ideas?
Cheers Si