up ko lang...

here's the update:

rpm without AC = 1200
rpm with AC = 700-800

ano po ba ang tamang adjustment or reading, with and without AC?

im planning to adjust the idle screw at babaan sa 1000 or 900 (w/ AC)
kaya lang bababa na yun (w/o AC) sa 500 or 400. ayos lang kaya yun?

please help. salamat