Doing the ear shave. is there any problems with the ear shave kit from Sherms? They could not tell me what jet sizes where in the kit (the #s were covered by stickers). They also said needles in kit set to 3rd notch (seems to me everybody on this sight uses stock needles with none - 2 shim). Next is this 140/142 and 40/42 rule is this with stock exhaust or not. I have exhaust that is resembles a h/d stk dual exh (not connected to each other). Help me. I own probably the worst 2 Jap carbuerated nightmares in the world. 1976 XS 650 Yamaha and 1992 Kawasaki vn750. :motorcycl Tanks Semmedog Peoria IL.