Air Compression Problems

[vv238]

Ok me and my friend, fixedinwi are fixing up a moped and we ran into a problem. After some extensive testing we found that the air compression was very low, about 100 psi below the recommended psi. Any thoughts on why this might be? the moped is a gelly jl50qt and it has roughly 4,300 miles on it, and it has some, custom mods, so any help would be great

our original post can be found here:

scootdawg.proboards59.com/index.cgi?action=display&board=2stroke&thread=15772&page=1

[motomech]

We just covered that, read;

ScootDawg Scooter Forum :: The Garage :: 2 Stroke Scooters :: NEED HELP WITH SICK QJ1E40QMB