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Rear brake master cylinder 9 years 5 months ago #7679

fastpapaw Topic Author Offline Junior Member Posts: 13 Thank you received: 1	Rear brake master cylinder is leaking on a '79 and I can't seem to find a rebuild kit anywhere. Anyone know where to source one? Thanks, Mike Mike '79 KZ1300, '74 Water Buffalo, '82 GS1100, '99 Ducati 996, '95 Goldwing, '13 BMW R1200RT, '13 ZX14R, '06 YZ450F Supermoto
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Rear brake master cylinder 9 years 5 months ago #7680

KZQ Offline Administrator Lifelong Rider Suffering Through MBD Posts: 1032 Thank you received: 275	I haven't checked with them but I always start with: www.z1enterprises.com/ Bill 1947 Indian Chief, 1968 BSA Shooting Star, 1970 BSA 650 Lightning, 1974 Kawasaki W3, 1976 KZ900 A4, 1979 KZ750 B4, 1979 KZ750 B4 Trike, 1980 KZ550, 1981 KZ1300, 1982 KZ1100 Spectre, 1985 Kawasaki ZN1300, 1987 Yamaha Trail Way, 2000 Honda Valkyrie Tourer, 1981 GL 1100, 2009 Yamaha RoadLiner S
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Rear brake master cylinder 9 years 5 months ago #7681

Tyler
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Posts: 251
Thank you received: 46

Sorry but there is no "rebuild kit" available anywhere for the rear master cylinder. That is one of the more difficult things to get parts for on the 1300's. They only used that brake setup on the 1300's and voyagers, so there are no other parts that interchange.

You can get new piston seal for it from the UK. Scroll down in the link below and you will find them. Costs about $40 for the seals.

www.zed-parts.com/Z1300_parts_shop.html

You can take the old cylinder apart and polish the piston and clean it up, if it is scored badly, then you have to find another one or adapt a different master cylinder.

1981 KZ1300

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Last edit: by Tyler.

Rear brake master cylinder 9 years 5 months ago #7686

Egor Offline New Member Posts: 3 Thank you received: 0	Corvettes/antique vehicles have similar master cylinder wear problems. The cylinder can be re-sleeved with SS or brass.I think it it White Post who advertise in Hemmings. There are others. As for cups/seals a real good brake/clutch shop should be able to source what you need - I found the proper Ducati/Scarab cup at a local brake expert in Edmonton. Lee.
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