I have a 1982 suzuki 750e the carbs were rebuilt and I set the floats to 22.4mm. I got the carbs running with ether and then with gas. If I reduce the thumb choke all the way the engine dies also if I try to rev the motor above 4000rpm the bike dies I had to turn the idle adjustment almost all the way out to get the motor to fire. It seems to run around 2500-3500rpm. The engine runs rough and seems to backfire. I reset the air screws to 1.25 turns and am wondering if the carbs need to be synched and if so is there a way to do it without the carb sticks?