1985-1986 Honda ATC250R Shop Manual, Page 227Get this manual
ELECTRICAL SYSTEM
HEADLIGHT BULB Disconnect the headlight coupler and remove the dust cover from the headlightRelease the retaining cI ip and remove the headlight bulbReplace the faulty bulb with new oneInstall the removed parts in the reverse order of removal
RETAINING CLIP WASHERS NUT TAl LLiGHT BULB
TAl LLiGHT BULB REPLACEMENT
Remove the taillight lens by removing the two screws and nutsRemove the taillight bulb by pushing it in and turning it counterclockwiseReplace the faulty bulb with new oneInstall the removed parts in the reverse order of removalNOTES Make sure that the taillight lens rubber seal is in good conditionBe sure to install the washers on both side of the rubber mountTAILLIGHT LENS RUBBER SEAL