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BRAKE FLUID LEAK FROM MASTER

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dave400:

--- Quote from: cbradley400/4 on October 05, 2009, 06:51:41 PM ---Many thanks,belatedly.

--- End quote ---

So what caused the leak. ;)

Cheers

Dave

cbradley400/4:
I'm not sure.I got a spare master cylinder but haven't fitted it yet as the leak is intermittent and it stopped again!
The bike's been off the road recently as it's burning oil at 5000+ rpm and just won't run right.The points and ignition have been checked as have the carbs.It needs a compression test and the head lifting as i'm told it's likely to be rings.There's 40K + miles on the clock.Any further views would be greatly appreciated.

Martin

SteveD CB500K0:
Burning oil = rings or valve stem seals.

When you check the compression, pour a bit of oil down the bores and retest. If the reading goes up significantly (like from 90/100 psi to 150+ psi) then you need a rebore.

If the reading doesn't change, its not the rings so must be the valve stem seals.

cbradley400/4:
Many thanks.

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