Is leaning out the needles 1 notch on a 74 cb750 have a significant difference on midrange tuning?? I have a midrange richness (sooty black). To those that have done this: Will 1 notch be enough or is the difference more subtle (like dark tan to lighter tan in color). Yes I believe that the needles are the problem. I guess the needles could be worn but they didn't appear to be when I cleaned the carbs. I know: try 1 notch and see what happens. Just want to keep the carb on/off madness to a minimum. Thanks
