Headlight keeps popping up

[mitchilin]

Got a GSX 750 popup Katana and every time I brake or indicate the head light pops up and pops back down when I turn off the indicators or let off the brakes.Anyone had anything like this before?

[Grahameeboy]

But its a pop up headlight, whats the problem?

[Grahameeboy]

I found this snippet on a site. Not as specific as yours but tells you how to solve it, although I guess not the ideal solution.

I had a 750 Katana for almost 2 years (wiped out by a cage turning right
from the left hand lane). During that time I had to replace the stator coil (it
burned out) and had no end of trouble with the motor that raised & lowered the
headlight. It had an intermittant fault where it would raise or lower the
the headlight at random intervals (very annoying at night when the headlight
lowered without being turned off). Sometimes it would continuously raise and
lower, and I'd have to pull over and kill the engine to make it stop. I
eventually disconnected the circuit and left the headlight up permanently
(the circuit for the motor and for the headlight globe are seperate). I had it
looked at 4 or 5 times and noone could find a fault with it, and it was not
a "known fault". It was a fun bike to ride, but I'm not in a hurry to own
another one. I didn't have any mechanical problems with it.

[mitchilin]

But its a pop up headlight, whats the problem?

It's not really much of a problem.If I ride with the headlight on everythings normal.If the headlight's off it looks kinda silly with it popping up every time I hit the picks or indicate.It seems that somehow the brakelight and indicator circuits are in contact with the circiut for making the light pop up.I've had bikes that get dodgey electrics when it's damp or wet but this things bone dry.Switching the bike on and off does nothing.

[Spuds1234]

Take the fairing off and trace the wires for the brakes, indicators, and the motor for the headlight and using a multi meter, try and find the point at which there is a short and then just use some electrical tape and your good as gold.

I have the same bike. Great bike it is to. Ive only had mine for a couple of months though and I havnt experienced this problem.

[Max Preload]

Bad earth...

[HDTboy]

Bad earth...

What he said

[davereid]

Bad earth...

Yep, headlight motors got a bad earth, and it finds a false earth via brake lamp.

[Blondini]

ahhh mine does this too...how do I fix it???..ah thanks spud I will try that.

[FROSTY:Me]

i'll second the opinion re a dead short--
Id be pulling the fairing off and looking for places the wirings been er "munched" by a crash or even just by normal wear n tear.

[Max Preload]

Yep, headlight motors got a bad earth, and it finds a false earth via brake lamp.

Or anything else on the ignition swtich operated accessory circuit.

[mitchilin]

Took it for a WOF on saturday and the tail-light bulb was fucked.Swapped it out and problem disappeared.So.there you go.It looks to me like some kinda "safety feature" to let you know your tail-lights blown.Bad earth...?

[Max Preload]

I can't find any mention of any such safety feature on the net, so doubt it's anything of the sort. If you put the blown bulb back in, does it happen again?

[imdying]

Took it for a WOF on saturday and the tail-light bulb was fucked.Swapped it out and problem disappeared.So.there you go.It looks to me like some kinda "safety feature" to let you know your tail-lights blown.Bad earth...?

Either that or they're all correct and it's earthing out somewhere it shouldn't... probably was the reason the taillight bulb blew too...

[mitchilin]

Don't know.All I know is it stopped when I chucked a new bulb in and instinct tells me thats what it was.I can't find fuck all on the net either about this kind of thing but I believe the simplest solution is usually the right one.