I recently rebuilt the carbs on my '81 R100. I used Bing repair kits, watched the DVD during the rebuild and used the Bing manual and a homemade manometer to sync and adjust. Needles are at position #2 (from the top). After putting the carbs back on the bike, as per the manual, I backed the idle adjustment screws off the levers, and while my friend held the throttle at around 1200rpms I used the vacuum gauge to set the throttle cable free play at the carbs. Then, also using the vacuum gauge, I set the idle to 1000rpms. Third, I tightened the idle mixture screws until lightly seated and then backed them out 1 1/4 turns and went for a tuning ride. The Bing manual states that, from a standing start, there will be a bog (which there was), and to turn the idle mixture screws out (CCW) a "notch". It said to repeat this process until the bog, which I understood to mean from a standing start, is gone. I did this, and from a standing start, there is no bogging down, or if there is, it's so light that I don't notice it. However, when cruising, it seems like the throttle is not as responsive in the off throttle - 1/4 throttle department. It's alsmost like a lag rather than a bog. Once I get past a certain amount of throttle, the bike pulls hard, which I'm thinking means the bike is completely off the idle circuit. Should I continue to make small CCW adjustments on the idle mixture screws until the problem goes away? How, aside from fouled plugs, would I know if I've gone too rich? Thanks for the help! EDIT: The float height appeared to be set properly on both carbs when I pulled them apart, and I checked them before reassembly and they were good.