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Help identifying a master cylinder

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    Help identifying a master cylinder

    My master cylinder started leaking, so I ordered an oem piston/cup set for my bike model (1982 GS 750T), but the new set was smaller than the one I removed from my master cylinder. I believe the original piston size for the GS 750T was 14mm but mine is 5/8 inch. It has the regular switch brake light switch that Suzuki master cylinders have.

    IMG_4630.jpg
    album with more pictures:


    Any suggestions where this master cylinder could have came from or suggestions on replacement master cylinders is appreciated.
    ---------------------------------------------------------------------------------------------------
    Bikes:
    2016 Suzuki TU250X (Daily/Commuter)
    1982 Suzuki GS750T (Project)
    1979 Suzuki GS750 (in pieces)

    Cage:
    2005 Subaru WRX Wagon sh*t box

    #2
    14mm is the correct size for a single disc GS and 5/8" is for dual. A 5/8" master can be used on a single disc front but the hand effort will be high. If your bike is like most 750T's with a single disc I'd get a new 14mm master off ebay. There are a multitude to chose from.
    Ed

    To measure is to know.

    Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

    Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

    Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

    KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

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