i thought that seeing as there has been a few 'how do i ....' type threads recently that i would do a thread on changing a break master cylinder.

firstly let me explain why i am changing the master cylinder.(M/C from now)

when i got the bike a few weeks ago the front brakes where a bit iffy. worked some tiems, worked really well others and then hardly at all.

so i was going to bleed the brakes and see if it sorted the issue but upon opening the M/C i saw there were some crusty floaters in the fluid, so a strip and clean was needed.

1 wrap the area around the M/C with a rag.

2 remove the top and drain the fluid, i used a syringe. and dispose of fluid

3 slacken the banjo bolt, green arrow, then loosen the clamp bolts, red arrows.

4 then completely remove the banjo bolt, taking note of the two washers, green and red arrows

5 then undo clamp bolts and remove unit from bike, carefully. and empty out any remaining fluid into a container

the replacement unit

clamp new unit to handle bars. not copperslip, anti seeze or what ever you want to call it.

fasten banjo bolt up, i got a new one with my ne unit. then make sure you hook up the spade connectors to the brake light switch.

fill unit and bleed the brakes....

dont know how to do that?? then see the how to bleed brakes thread.