Ok bringing back up an old topic but my question today is does anybody know what the actual difference is between the LM and G4 carbs. The only things I have noticed is the G4 has a black poppet which is different to the white one in the LM, (why?) and the cap has the adjuster screw fitted.I guess Victa dropped that to cut costs and it probably didn't work any way, at least I can't see how it would. I'm going to modify the cam as per all the LM's I have done so far(fantastic mod on these carbs and they work brilliantly) but I was just curious if anybody knew the actual differences. I'm tempted to try a white poppet in this one to see what happens. Anybody tried this?