07 SB with about 7500 miles. A few weeks ago rear brake got soft. After pump a few times it works. Dealer said bubble, bled it, helped a little. A week later a buddy bled it, it has plenty of fluid and same thing. Its actually worse now. I'm thinking master cyl??? Its under warranty. Any thoughts?

 

no leaks?

 

Yep, I would have the dealer check out the master cylinder. If the pedal is going soft it's usually the fluid going around the seal on the piston and creating any pressure to operate the pads in the calipers. Yep, time for the dealer

 

When you pump the brake, will it slowly go down and down. If it does it really says the master cylinder needs to be rebuilt or replaced.

 

Yep that's what I tried to say but I forgot one word..."not" creating pressure. oops.