2005 Polaris Sportsman 400/500 Service Manual, Page 292Get this manual
ELECTRICAL 4Tighten the screw25' (7.6 m) Lamp Center Height
LOWER HEADLAMP REMOVALINSTALLATION
2Measure the distance from the floor to the center of the headlight and make mark on the wall at the same height3Start the engine and turn the headlight switch to high beam4Observe headlight aimThe most intense part of the headlight beam should be aimed (5.1 cm) below the mark placed on the wall in Step NOTE: Rider weight must be included on the seatOn machines with separate low beam lights, the drop should be (20.3 cm) in 25' from the center of the low beam lamp5Adjust beam to desired position