rear master cylinder

andre

Senior member
Gents

rear brake on Motodd is proving impossible to get the air out. No matter how much I bleed it, it bubbles air out into the reservoir on the backstroke of the piston. I'm of the view the master cylinder needs replacing or re-kitting.

How do I tell if it's a PS12, PS14 or other, so I can order a rebuild kit? I'm confident it has never been rebuilt in the last 40 years.

It seems to be as would have been fitted to a late 1970's triple. Cylinder sits at 45deg, with reservoir mounted on it.

Thanks, Andre
 
Most likely a PS15 if it's Brembo and taken from a donor 180 triple.
Photo would help.
 
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