ORIGINAL: alaflyer
With the ''In'' line hooked to a separate tank and the ''Out'' line that normally runs to the carb into a separate container, the pump will drain that separate tank faster than i can fill it! If that is any indication the pump is probably OK.
Now with the same arrengement above:
empty the "out" line so there is no fuel in it...Then turn the prop over by hand one compression stroke at a time...You should see the fuel move in the tube **approxamatley** 1/4" per stroke...
Note: it may take a couple of strokes for the pump to prime it's self and get rid of any air ect....After the 4th or 5th compression stroke it should be pretty consistant in "moving" the fuel...
Have Fun...
Chuck