Hitchcocks Forum

The tail filament of the stop/tail bulb on my (newly acquired) 2004 bullet sixty 5 blows every so often. Any suggestions on a likely cause and how to remedy it?

How long is every so often ?

Check is it wired correctly the stop and tail wattages are somewhat different.

It works for a few rides (total 3 or 4 hours) before it blows. Stop light does not fail.

Are you buying cheap bulbs in the local pound shop they might not be up to the vibration of a motorcycle especially an Enfield

Check the earth as well as the condition of the tail-light wiring and any connectors. You could try a quartz-halogen stop tail bulb with heavier duty filaments or perhaps try LED bulb replacements. A

Thanks, guys for these suggestions. I'll try first your suggestions for better quality bulbs.

Save your money until you need it by first checking your electrical connections as advised by others

Halfords do specific motor cycle bulbs which i assume are to help withstand vibration.

Anyway cheap enough to give it a try..

If you can, then measure the voltage at the bulb holder with the engine at a fast tickover, around 13.8VDC would be ok.

Also check earthing which if causing a resistance can mess with bulbs..