RE: Welcome to Club SAITO !
Thunderchild and Evansh you are both right on the PERRY PUMPS the VP-30 is the 3 line pulse pump usaully used on 2 strokes, but if set up right works very well on a 4 stroke. Place a 1in tube onto the case vent then a T. Out of the T one end should be over 3-4in to vent case and the other a 1in end goes to pump pulse line.
The VP-20 is the 2 line Vibration pump and goes in line before your main needle valve, The trick on those is to NOT mount them with fuel outlets up and down, always side to side and at least 1.5in off the crank center line. I usaully bolt them hanging off the bottom of the fire wall to get the best pumping action. This may differ from the VP-20 instruction but that advise came from Perry directly.
If I need to really draw fuel, say from a tank on CG set up then I go with the VP-30, If I just want a nice light positive fuel pressure then I run the VP-20