1998-2001 Honda Fourtrax Foreman TRX450S, TRX450ES Factory Service Manual, Page 374Get this manual
LlGHTS:METERSjSWITCHES InstaU assist headlight upper c:ase and tighten the
UP'PER CASE
TAILLIGHT
ULB REi LACEMENT P
Tum the !bUllb socket counterclockwise and remove -
the bulb socket from tile taillightc.a,se
Remove the bul fro til sockel and ra piace it with mew oneInstall the bulb in the reverse order of removal