If you're talking about the the pilot mixture screws on each carb, they are generally 2.5 to 3 turns out from being fully wound in and lightly seated. If you mean the pilot air jet screw, you would have to go digging in the service manual which is only in Japanese
If for the mixture of benzene air of each carburetor, it turns out that it is very difficult to start my motorcycle, pushing it is no problem but when the electronic ignition starts and sometimes does not start. Can be carbomacion problem nomas, so the question. thanks