Broken cilinders - 2000 Yamaha YZF-R6

Friend, if the brake fluid is running right out of the master cylinder when you fill it, you have a bleeder open or a line broken somewhere in the system. Look under the car and see where it's leaking from and fix it. Then refill the master cylinder, go to the left front and open the bleeder, when fluid comes out, close the bleeder. Same on the right front. Then go to the rear and open the bleeder on the right rear till fluid comes out then close it. Then go to the other side and do the same. This is called gravity bleeding and it works fine. It's the only way I do it myself. You don't need anyone to pump the pedal. Oh yes, leave the cap off the Master Cylinder for the bleeding process. When completed and you have a good pedal, put the cap back on.

Maybe there can be a problem with a rip in the cilinder its a very thin cilinder and its neccesary to replace with all the parts on it because of the extreme heat build up.
cilinder assy 42 41A possible necessary, but first inspect the cilinder carefully on a rift. some other rings or parts broken or worn.
Hitachi NR90GC 3 1 2 Gas Powered Clipped Head Framing Nailer Parts

Bad bumper inside.

Broken hose or pressure line ? membrane plates broken cilinder gasket blown out or check valve is dirty

If the bike has been laid up for a while without the carb's being drained, they lacquer up and need sonic cleaning to get them 100 per cent. The ringing sound from sounds like broken piston rings, the low compression reading on 4 confirm this, Sorry, it looks like major surgery required.

some cilinder dont work normally. or some engine suspension unit is broken

If it's broken off below the surface you'll have to drill the remainder of the bolt out. If it's broken off above the surface and you're somewhat handy you can weld a nut on the end of the broken stud and remove with a socket wrench. Here's an excellent read on the how to of removing broken studs....it saves me the time of having to type it all out. Good luck.

http://www.asashop.org/autoinc/may2003/techtotech.htm

HALLO
CHECK BRAKE FLUID IN CLUTCH CONTEINER. IF IT IS MISSING, ONE OF CLUTCH CILINDER IS BROKEN.FIRST CHECK IF INSIDE THE CAR BEHIND CLUTCH PEDAL CAN BE SPOTED SOME BREAKE FLUID FROM CILINDER. IF EVERITHING IS "DRY", YOU HAVE PROBLEM WITH CILINDER ON TRANSMITION. ON SOME MODELS ARE OUTSIDE GEARBOX AND EASY TO CHANGE, BUT SOME HAVE BUILT IN CILINDER IN CLUTCH BEARING. IN THAT CASE YOU HAVE TO REMOVE GEARBOX, REDUCTOR...CHANGE CLUTCH TOO

MARKO

Check for broken motor and or trans mount.

Hi

You can block the piston in the cilinder with a starter rope with manny nods entered in the sparkplug hole.

best regards savumihai71