How do you adjust air shutters on propane lennox g1205-165-3 furnace it was converted from natural gas i don't know if its suppose to have air shutters Danny thank you?

To adjust the air shutters on your Lennox G1205-165-3 furnace, first ensure the furnace is off and cool. Locate the air shutters near the burner assembly; these are typically adjustable by loosening a screw or knob. Open or close the shutters gradually while monitoring the flame appearance—ideal flames should be mostly blue with a slight yellow tip. Adjust until the flame is stable and efficient, and then re-secure the shutters. Always consult the furnace manual or a professional if unsure.