I'm going nuts. I have a 72 CB750. I'm experiencing idling and just off idle missing. It seems to happen more when the engine is at operating temp? I have taken the carbs off and have done the following but actually made the problem worse? disassembled carbs cleaned everything. replaced needle valve seat, seat pin, slow jet, main jet.new air screws, set floats at 26mm. I inspected everything and it looked good. I get an occasional popping out of #4 pipe. I have set the air screws so it idles and runs OK, but then for no reason it just starts to sound like it's missing. any thoughts from anyone would be appreciated. thanks Mike
