far as i know the only differences are to lm and g4 . the jets are different and body to take said jets , one has a long plastic tube inserted in the jet the other doesnt just a fine mesh on the outer and cant be interchanged .
LM i think is the earlier of the two . is the "spider" in the three slots inside the body ? cable adjusted correctly ?
any jets there with a white(or close too white) tube in the end ? might be as simple as changing the carb' body making sure the jet is the right one , small short jet will fit in wrong body but long one will not as the tube is built in .
hope it helps
