Can anybody give me some pointers about cylinder 2 not running (CB750F2), have run out of ideas. Bike has been stood for a number of years. Have cleaned the carbs (although they were clean already), have replaced the float valves and set float heights (not sure if I have done this right as the manual does not even mention it), replaced the accelerator pump diaphragm, fitted new plugs etc. Engine fires up on the choke but cylinder 2 stays cold, does not cut in on higher throttle either. No.2 spark plug does not appear to be wet with petrol. Any ideas where I go from here, its bumming me out carbs have been off over and over. HELP!