A Hondaline lightbar usually comes with a relay and that relay draws
power from the taillight circuit, not from the headlight circuit, so
that should not be the cause of the start/stop switch failing.
But Honda would have done us all a favor and sold a lot fewer
replacement start/stop switch assemblies if they had installed
a headlight relay in our bikes.
Think about it, everything else that is controlled by the switches
on the handlebars uses a relay to provide power for what is controlled:
Engine stop relay for the ignition coils in the kill switch circuit,
fuel pump relay also controlled by the kill switch,
starter solenoid (relay),
turn signal blinker relay.
No relay for the headlight or the horn unless the rider
has one custom installed.
[SIGPIC][/SIGPIC]2003 VTX1800 C model Retro fenders