2005-2009 Honda TRX400EX/TRX400X Service Manual, Page 64Get this manual
MAINTENANCE
BRAKE LIGHT SWITCH
The front brake Iight switch ca nnot be adjusted If the front brake light switch actuation and brake engagement are off, either replace the switch unit or the malfunctioning parts of th systemCheck that the brake tight comes on just prior to the brake actually being engagedIf the li ght fails to come onadjust the switch so that the light come on at the proper timeHold the switch body and turn the adjusting nutDo not turn the switch body
BRAKE SYSTEM