[Trampsinger]

I have a 97 TRX200D. When I got it the front brakes didnt work. I put a rebuild kit in the master cylinder but it wont bleed., Now I notice that even with a vacuum on the wheel cylinders and the brake line OFF the master cylinder the air way is not clear. the vacuum holds pressure. Is there another valve or something between the wheel and the master cylinder? Not sure what the next move is.

 

[SamUK]

Sounds like you have a collapsed brake hose, the rubber rots internally, it happens from time to time. Just a case of figuring out which one it is.

 

[Trampsinger]

Well it has to be from the junction up if its just one because both wheel cylinders dont let any air pass to the mastercylinder.
Let the investigation continue!

Thanks

 

[retro]

If there is a balance valve in your front brake system disconnect lines from that... those valves can corrode and stick. Check the service manual out for reference help.

 

[SamUK]

Well it has to be from the junction up if its just one because both wheel cylinders dont let any air pass to the mastercylinder.
Let the investigation continue!

Thanks

Process of elimination is the best way forwards, split those two hoses from the 'T' piece, crack the bleed nipples and see if you have fluid flow. If you do then it's from the 'T' up.
As retro said, it could have a balance valve, that could be what the 'T' is, I don't know, I always assumed it was just a 'T'.

 

[_Wilson_]

Just for reference , I've seen these banjo bolts plug before, and i agree with @SamUK n @retro

 

[fishfiles]

I have seen the fittings on the end of the hoses get rusted up so bad that it takes a drill and bit to clear them out ------

do you know about pinching the rubber hose right at the master cylinder , if it pressures up when pumped with the hose pinched then the master cylinder is good