front master cylinder diaphram

[DeanR]

24 bucks at partzilla. Not happenin'.
Mine is torn and I can't find my extra. Anybody happen to have one ?

[oldyam80sg]

The rubber part? I have one I believe.

[Radioguylogs]

Another option:

https://sumorubber.com/1j3-25854-01-reservoir-diaphragm-front

[jetmechmarty]

https://yamahaxs650.com/product/master-cylinder-reservoir-cap-diaphragm-kit/

https://www.heidentuning.com/xs650-shop/chassis-brakes/brakes---shoes-pads-hoses-rebuild-kits-fittings/master-cylinder-diaphragm-77-85-detail.html

[DeanR]

Found the diaphram.but not the four screws. Anybody have some, or their measurements? Looks like they aren't available anymore.

[Tim]

I have my old front master cyl from 1980 xs1100S,
the plastic reservoir was bad looking so i put on a nissin radial (over kill) unit, so i SHOULD have those parts,
Best i remember the screws looked a bit rough but i can soda blast them. I work at a bike shop, have some parts, etc Here in west texas

[DeanR]

Tim, please let me know what you find out about those screws. Thanks.

[jetmechmarty]

https://yambits.co.uk/xs1100-brake-master-cylinder-cap-kit-front-p-69798.html

Pricey for four screws, but….

[DeanR]

Just found the screws too. Yay !