MZ/MuZ Riders

Could any one help please,

my brake light had blown only the part when i press the brake but the light comes on as normal with the head light.

I have replaced the bulb but the brake light when pressed still does not come on.

Have you tried your brake light with your rear brake only (foot)?
If this works, it could just be the switch/sensor for the front brake lever.
I had a problem with mine (it just wears out!) £6 ish from BSA (MZ parts)
Really simple to fix!
If your brake light dosn't work on the rear then I don't know.

thanks for the info,

I did try the frount and back on the lever and the foot pedal and the light did not come on with the lights turned off, but with the lights on it does come on but does not get brighter when the pedal or leaver is used.

rear switch= aprilia number on parts bag is
8124479

for rear brake light switch on my 2002 rt125


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the front one is a bmw part
61 31 1 244 070

This part fits models listed for year 1981 maybe others
R80, R80ST, R65, R80RT, R80GS, R100/7, R100CS, R100RS, R100RT, R65LS

also fits 2002 mz rt125cc and 1995 saxon tour and harley davidson sprint from early 1970's
search word fbs rbs

I would like to say thanks for your help and give some more part numbers.

Yamaha Part

This number on the packet 5JH-H3980-02 and F20060830.
from web site http://www.beedspeed.com [A] 24 614 0030 & [A] 24 614 0040

This one comes with a wire attached and a cover but you can take them off and the switch is the same as the original SM part.

Gilera, Piaggio, Vespa parts

Part number [A]-24 614 0010 this is a metal one but it still fits.

I am still looking to get the back switch.

[quote=from above post "DAVID THOMPSON"]rear switch= aprilia number on parts bag is
8124479
this was a replacement sent to me by the dealer where i bought the bike
and it fit mine

rt125 rearbrakeswitch

Sorry Dave, I was not saying yours did not fit but I could nt find a dealer that had some in the shop and was trying to be of help to others with more part numbers.

it fits a bunch of bikes try a ccm or atk dealer or a made in italy dealer

there may even be a ktm number for it

ar dave

I have got the switch for the sm but was woundering how to fit it I can unscrew it but how do i get the brake line off with the ring.

Please see picture

I find it hard to believe that both switches could be bad.
Have you checked that your replacement bulb is twin filament (sometimes the simple things)

I have never replaced the back one in six years but the front one i have had at least one a year.

But could any one help with fitting the back.

on my rt the switch is also the bolt that holds the line on
remove switch and line comes loose then replace

and have a ton of fun getting it bleed of air after done yuk

Thanks Dave,

So the the brass washer may be squashed to much and binding it up they must have over done it in the factory as i have never changed it before.

Thansks again Dave your a Star.