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06 yz 250 no back brakes

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I cant seem to get my back brakes to work. Should the adj screw on the master cylinder be up in the cylinder a ways? I think it is screwed out as far as it can go. I just bought this bike and have been checking everything over.

Thanks

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I cant seem to get my back brakes to work. Should the adj screw on the master cylinder be up in the cylinder a ways? I think it is screwed out as far as it can go. I just bought this bike and have been checking everything over.

Thanks

If you bleed the brakes the problem should be solved

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Take the MS off and service it as well first. Try to back bleed as well. I had to bleed my rear line for an hour last month to get it to finally firm up. Is the fluid bubbling in the MS?

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If you can't get it to bleed, you will probably need a rear mc repair kit.

The adj. screw you are talking about is only for brake height adjustment.

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Try servicing and cleaning the MC first before you get the rebuild kit. It does not take much grit to get in the seal and suck air in everytime you pump the pedal when bleeding.

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