2005 Polaris Sportsman 400/500 Service Manual, Page 291Get this manual
ELECTRICAL 3Unplug headlamp from wiring harness
5 18 (13 cm)
C 4Remove O-Ring (C) from headlight pivot pins(Both Sides) NOTE: The distance from the headlamp parting line to the end of the adjustment knob stop is 18, (13 cm)See illustration9Adjust the headlight aim by turning the adjusting knob
HIGH BEAM HEADLIGHT ADJUSTMENT
C The headlight beam can be adjusted to any position desired by turning the adjusting knob located on the bottom right side of the headlight podRaise Headlight -Turn knob counterclockwise Lower Headight Turn knob clockwise counter