I just hooked up a brand new Perry VP30 pump to my MVVS 49 two-stroke glow engine to run the combo in a test stand. Checked what high speed needle valve setting the engine wanted without pump engaged. Then engaged pump and adjusted the pump pressure to roughly equal the same high speed needle valve setting. All seems to function well but I´m a bit worried about the constant spitting of fuel from the small drain hole in the red plastic body. Is this normal or indicating a problem or maladjustment..?? Thanks in advance for sharing your experience with me…….Cheers/Harald

There shouldn't be anything but air coming out of the vent hole.
They had a problem with cracks developing in the plastic mold after it is subjected to the vibration.
I had one fail after a few months.
Send it back, they'll send you a new one.

Kirk

IMHO,
Perry pumps on small(ish) 2-strokes like yours produce way too much pressure, even with the pump's adjustment screw fully backed off. The only way I've been able to get a perry pump set-up properly on a .46 glo engine is by putting a return line in the system... a T-piece in the fuel line between the carby and the pump, which lets un-need fuel return to the tank.
Just remember the tank still needs to breathe, so don't just connect your return line to the breather nozzle on your tank
Hope this helps :-)