Suzuki GS 125 bulb problem

[mr_barbra]

Hello there, just registered and really need some help

I have a suzuki gs 125 from 1990 (picked up from a farm for £130 - bargain!)

well the other night i was riding home, pulled up at traffic lights, and someone said to me my stop bulb wasn't working.

Got home and look for my self, no light on, and when braking still no light. all other lights are fine.

took bulb out, filaments appear in good nick. Going to buy a new one anyway, but i doubt thats a problem.

I looked in the haynes manual for it, was no good.


The only thing i think it could be is that there is a loose black wire sort of touching the metal bit just under where the bulb holder is, and i have no idea where it goes, so perhaps that is shorting it, out?
Its not long enough to screw in anywhere

https://img139.imageshack.us/img139/7410/hamis6.jpg
pic of the bulb holder

thanks

[djaaron]

the black wire is a earth and it shoud go any were on the frame to get a earth thats what it sound's like to me

hope this help's

[Vincent]

That wire in the pic has been put on by someone, rather than being like that originaly - probably for an extra brake light or something similar. Maybe the earth was no good and someone has tried to make another one. Follow the wires from the back light and make sure they're connected properly. If they're ok, follow the wires from the handlebar switch to inside the headlight where it connects, make sure there are no loose wires. Even if the connecters look ok, just pull them apart and re-connect them. sometimes you get corrosion, green verdigree on the brass connecters that can cause problems. if no use, let us know.

[gherking]

I had a GS125, the headlight bulb used to blow all the time, like every 3 months. Seems it ran it at a higher current than it was designed for.

[mr_barbra]

right well i put a new bulb in it, and it worked! i then pressed the brake lever and it stopped working again. tried another bulb (it was a twin pack) and nothing.

ive pulled the black wire out completely just in case is was not a earth wire, pushed it against the metal casing, and both cases it still didn't work.

Ive got the haynes manual but i has no wiring diagram for the lights so that didn't help.

I assume something is loose perhaps, hence it sometimes works, but i don't know what, the wieing from the switch seems fine as well, no cuts in it or loose bits.

Ive noticed that the metal holder for the bulb is loose as well but i don't see how that could cause an issue the wiring going into the bulb holder is nice and tight.

I am now utterly lost on this

[oriel dave]

Do what Vincent said and follow the wires. I had a similar problem on mine which was fixed by cleaning the connectors under the seat. The seat comes off quite easily.

Try and get everything tight as well.

Dave