I think I come up with prototype for G2 G3 carburetor needle which really works great. With the original plastic needle, no matter how hard I push the float in and using a leak detector gauge, still leaks air and gauge needle drops. With the prototype nitrile rubber tip needle fitted with brass bushing, even a slight push, pressure holds at 15psi without movement of pressure. I hope everyone will support my new prototype LM/G4 needle lever which will be out on the market early next year.