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Gs 250 restoring to riding condition
				
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	 mike_of_bbg mike_of_bbg
 Stainless lines will definitely give you a firmer feel on the brake, and will be much less prone to water absorption like the more porous stock lines. Plus you won't ever wonder whether that 30-year-old line is going to burst the next time you get on the lever...
 
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	 1980Gs250 1980Gs250
 yeah i got to thinking about that line busting as well. I will get on that brake rebuild once i get it running. thanks for the links! plus stainless lines are so much nicer looking  
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	 1980Gs250 1980Gs250
 
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	 mike_of_bbg mike_of_bbg
 Well, it's a cheap Chinese part but would probably work just fine. It's not a Suzuki master cylinder, but it is probably the right bore size, and it's sized for 7/8" handlebars. Has a threaded hole for the mirror. I have a non-Suzuki master cylinder that I bought from usa-motorcycles-inc, so here are a few things to think about:
 
 1) You probably won't be able to find a rebuild kit for it when the time comes, so consider it to be "temporary" for a few years.
 
 2) That uses a different thread pitch than the Suzuki MC for the banjo bolt. It's still 10mm and they appear to include the banjo bolt, but just for reference older Suzuki banjo bolts as on the GS are 10mm x 1.00 thread pitch, vs. 10mm x 1.25.
 
 3) You'll have to adapt your brake light switch to work with that. Probably just cut off the wires very near the switch part and crimp/solder female blade terminal connectors to mate with theirs.
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	 1980Gs250 1980Gs250
 ok so look for suzuki part. I guess it would be easier to just rebuild it in that case. good time as any to learn i suppose haha
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	 mike_of_bbg mike_of_bbg
 Well, I'll tell ya, don't ditch the thought of that master cylinder yet. OEM rebuild kits are available for your stock master cylinder, however, the one in the picture of your bike does not match the fiche image for a stock master cylinder on an 80 GS250T. Note that in the parts fiche there's a round plastic reservoir with a round plastic lid, but your picture looks like a rectangular one with integrated reservoir and a screwed-on cover. So it might not be Suzuki, or even if it is it might not be the "proper" one for your model. You should see if you can identify the master before you think about ordering parts to rebuild it.
 
   
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 Post some good up-close pictures of your master cylinder and someone here can help you identify it. If you can get an OEM rebuild kit for it, that's the way to go.
 
 I highly recommend rebuilding the master cylinder and caliper. (calipers?) It's not at all difficult and you'll be secure in the knowledge that your brakes are a known-good state.
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 Missed this one! Tuning in now...1982 GS450E - The Wee Beastie
 1984 GSX750S Katana 7/11 - Kit Kat - BOTM May 2020
 
 sigpic
 
 450 Refresh thread: https://www.thegsresources.com/_foru...-GS450-Refresh
 
 Katana 7/11 thread: http://www.thegsresources.com/_forum...84-Katana-7-11
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	 1980Gs250 1980Gs250
 if it warms up after while i shall get pictures to post for you guys.... right now it is 17 degrees and pouring the snow lol.... it is true i noticed as well that the master cylinder doesnt look like the other ones ive seen on gs250's.... i dont know the previous owners and you gotta not believe what they say anyways so ugg.... the ones ive seen were all round ones as well
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	 1980Gs250 1980Gs250
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	 1980Gs250 1980Gs250
 this is the closest i could come up with at the moment but i think that price is a bit much http://www.ebay.com/itm/80-SUZUKI-GS...17488e&vxp=mtr
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	 isu2014 isu2014
 I would swoop this one up if I was you. I paid $25 just for the plastic fluid reservoir when mine was cracked.
 
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	 1980Gs250 1980Gs250
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	 isu2014 isu2014
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	 1980Gs250 1980Gs250
 ok sweet... i didnt know if they had different size pistons master cylinders etc. i saw that one earlier but wasnt sure. i will snatch it up now! i called suzuki and they said the bike never came with a square master cylinder only the round one so who knows where this one came from. sigh
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