Problem with main brake cylinder
 

First of all, sorry, but I know only English, and I need help :-P

I have a problem with front brake cylinder. Plastic is broken, so oil is leaking.

Has anyone the plastic or can recommend what to do?

Thank you!

http://imageshack.us/a/img845/5935/img0098sv.jpg

http://imageshack.us/a/img254/8076/img0100tv.jpg

http://imageshack.us/a/img507/1726/img0101z.jpg

In recent times some other user have also had this problem.
The sight glass can not be replaced easily. Ask at your local dealer. If no solution, you need a new (or used) master cilinder.
You can also search the forum for "Schauglas" or "Bremsflüssigkeitsbehälter".
Search for "Schauglas" ist´s easier.


http://forum.gs-500.de/search.php?searchid=678399

I've seen your GS is from 2005, may be you can ask your local dealer to change or fix the master cylinder using warranty. Seven years are just a very short life time for a master cylinder.

Thank you :)

Do you know any secure webshop to buy this? Or does it fit from any other model?

You can looking for " Bremspumpe vorne " at "Biete" ( offers ) at marketplace (Marktplatz)

or try your own search ad at "Suche"
"Suche Bremspumpe / Flüssigkeitbehälter vorn "

The piece you look for hasn't got a part number, as you can see here: Alpha-Sports
So i don't think anybody can tell you which bikes have got the same plastic window.
It will also be difficult to get it without the whole brake-pump.

Rocky, i think it will be cheaper for him to buy it in croatian ebay.

Well, problem is that there is no Suzuki official dealer in Croatia, and also, this parts are rare on aou market of used parts.

Generally, one can grow any brake pump (master cylinder) to the correct bore / stroke ratio and the corresponding connectors. However, it is much easier if you used the same series a fitting part. In my opinion, the GS 500 F would also have all of the Master Cylinder GS500E (GM51A / B) match.
You can even compare them out:

http://www.alpha-sports.com/suzuki_parts.htm

same part numbers = same parts.

A used brake master cylinder you can get on the Internet, for example ebay. or you try used parts dealers.

There is also the possibility here in the forum in the marketplace looking for the "Offer Share". Maybe you can find here the part.

http://forum.gs-500.de/forumdisplay.php?f=107

for example

http://forum.gs-500.de/showthread.php?t=31278 (Tokico Bremsanlage vorn, komplett)
front brake system completely

Die der GM 51 A passen nicht! anderer Winkel wegen dem Superbikelenker....

Translation:
The brake pump of the GM 51 A does not fit! Another angle of the Superbike handlebar ...

But he does only need to replace the window, not the entire brake pump.

du kriegst es nicht einzeln!!!!!! Es gibt nicht eine Teilezeichnung wo es das Teil einzeln gibt.

Das hab ich dich vorhin auch geschrieben. Ich wollte dir nur sagen dass er einfach irgendeinen GS-Bremszylinder kaufen kann und das Glas austauschen kann.

Na dann nimmt man doch gleich den ganzen Zylinder, der ist dann wenigstens dicht. Das Schauglas ist wohl nicht zum tauschen gedacht, sonst gäbe es das ja als Ersatzteil.

there is no ebay in croatia ; as far as I know you will be redirected to ebay.de


@duje

what about this

http://forum.gs-500.de/showthread.php?t=30229

I will send PM. Thank you!