There should be a screw in the front of the regulator. I use to take a cup of water and put the hose coming out of the regulator in it. You should see a bubble of fuel about a second or two apart. If it is coming out at a steadier pace than that try to adjust it by turning the screw. If that doesn't work you may need to replace system.
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.