Hi 2stroker,
Mowerfreak is right. There is no much G2 and G3 engines on the road unlike the LM/G4 engines. To get this needle manufactured, I need to order 1,000pcs. The metal needle that I used to replace the plastic needle for G3 is a standard Tilotson needle which is straight replacement and pretty much the same dimensions except I have added a 5mm copper bushing. You can also used the spring that comes with it. We have this needles.
CM