Hi guys, Is there a source for the 5th gen proportioning valve, or a rebuild kit? I have a 98 VFR800. Mine is malfunctioning, causing the middle pistons to cease, on the rear brake calliper. My mechanic can’t find one. Your help is appreciated. Sent from my iPhone using Tapatalk
Do you need the PCV or the secondary master cylinder? The latter is far more likely seize up and that will either stop the rear centre piston extending or more often stop it retracting (the brake is seized on). The PCV can be disassembled for cleaning if needed as it is only held together with a circlip and some o-rings. Here's one I disassembled earlier.
