Got an 09 YZ450F. Wanted to go to stainless brake lines. Front replacement went fine. Rear is NOT working. Everything is tight, but when I compress the pedal and the MC cap is off, I get a bubble of air coming out the top of the MC??? Been trying to bleed the rear brakes all day to no avail. No pressure at the brake pads whatsoever. Can anyone help? I've read some posts about removing the caliper and suspending it higher than the MC to make bleeding easier. Perhaps that's the ticket? Switched back to the original brake line thinking the new one might have issues...same deal. Brakes were working just fine before I started dinking with things. I know...I know...don't screw with things if they aren't broken. 41 and still learning lessons over and over and over again.