i am in the process of doing the brembo brake exchange , and i just installed the 08 master cylinder, judt to find out the i have no pressure at rhe brake lever,, i pull it quite a few times but nothing. i think the master cylinder is bad, any thoughts or did i miss something?

 

I had the same problem and I found out I had to bleed the master cylinder. If I remember correctly, I kept adding brake fluid to the reservoir and bleeding it out of the banjo bolt. It took a while but I got it. Just make sure you have plenty of rags handy. I also remember reading that you should bench bleed the master but at the time I didn't know what that entailed.

 

i pull that lever for 25 minutes but nothing

 

Are you adding fluid and cracking open the banjo bolt to bleed the master? I know it took me a while to get it done but finally after many lever pulls and a few rags full of fluid I got it bled.

 

Crack the banjo bolt loose on the master and see if you have any fluid coming out when you are pumping the lever.

 

i must be doing something wrong,,, i get alittle fluid but not mutch,,,, i have it on the bench right now, not on the bike..

 

When you are trying to prime the master while pulling on the lever you should see a small bubble break the surface of the fluid in the master. If you do not see this you have a problem with the plunger and the seals in the master unit.