Brake bias valve

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Brake bias valve

Fast Finger

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Jun 2, 2005
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Can anyone tell me how the brake bias valve functions on a Tipo.
ive posted in there already (with limited success) but thought that perhaps the same valve is used on other models too.

Ive fitted the pipes up to it but cant bleed the brakes.
The fluid is getting to the valve but not through. I think the valve may be knackered but not sure, is there a way to test without taking it back off (as this would require the exhaust and fuel tank to be removed again?)

Is it open when the arm pushes in, or does this close the valve?
So confused :confused:
 
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