1986-1989 Honda TRX250 FourTrax 250R Service Manual, Page 207Get this manual
ELECTRICAL SYSTEM Install the headlight in the reverse order of removalTighten the screw and bolts securelyMake sure that the headlight case, is aligned with the punch mark on the headlight bracket and index mark on the case
BULB REPLACEMENT (After'8?:)
Disconnect the bulb socket and remove the dust coverNOTE Remove the front fender if necessary
Unhook the bulb retainer clip and remove the headlight bulbReplace the faulty bulb with good oneCAUTION
Wear clean groves when installing the halogen bulb