1998-2001 Yamaha YFM600FHM Grizzly Factory Service Manual, Page 138Get this manual
HEADLIGHT BEAM ADJUSTMENT HEADLIGHT BULB REPLACEMENT II:gS I
HEADLIGHT BEAM ADJUSTMENT 1.Adjust: Headlight beam (vertically) Turn the adjuster CD in or outTurning in Headlight beam raised
Turning out Headlight beam lowered
HEADLIGHT BULB REPLACEMENT 1.Disconnect: Headlight lead coupler 2.Remove: Headlight assembly CD