I recommend this to people all the time when they have power problems up top. My bike had been sitting for about 13 months, one of which the fuel pump was out of the tank and dry. I didn't want any surprises when I go to my first trackday back in 2 weeks, so I did this test. Since I was doing it anyway, I decided to record it. I don't know why anyone would pull the tank and pull the pump out to look at the pickup screen without doing this first. Under $20 and tells you a lot.