2008 Polaris ATV Sportsman 300 400 H.O. Service Manual, Page 204Get this manual
ELECTRICAL LIGHTS
Headlight Adjustment
The headlight beam is adjustable1Place the vehicle on level surface with the headlight approximately 25 ft(7.6 m) from wall
Headlight Lamp Replacement
Before replacing the lamp, use digital multi-meter to test the harness to ensure the lamp is receiving 12 volts and that ground path is present12Disconnect the headlight lamp from the wiring harnessBe sure to pull on the connector, not on the wiringTurn the lamp counterclockwise to remove it
25 ft(7.6 m)
323Place the transmission in neutral and lock the parking brakeMeasure the distance from the floor to the center of the headlight and make mark on the wall at the same height