sure,
while looking in the front bores, turn the throttle "knob" aduster down till it is clear of the stop, assuring the adjuster is not influencing the adjustment. Then adjust all 3 screws so that the front edge of the butterflies covers the forward most hole completly, or at least all but #2 do, sometimes #2 will only be 90% covered, thats fine. Now, adjust the knob so that #2 is halfway covered, look closely at it, and use a magnafier if needed to see it. It should look like you see the "full hole" by the reflection back on the butterfly, and it is not egg shaped, or squashed looking. Then, adjust the other screws so that all of the butterflys are looking the same, with half the hole covered. do the #1 screw first, then the #3 screw, and lastly the middle screw. This makes them all equal. You may have to go back and forth with #3 and the middle one to achieve this perfectly, but don't mess with #1 once it's on....you may then install them, or use the knob to adjust all 4 simultaniously to see about 3/4 of the leading hole, but the bike should start and idle with only half showing. final adjusting of idle speed is always done with the knob, don't touch the screws at all untill you decide to synch when the motor is running.