Join Date: Nov 2011
Location: Southeastern PA
Thanked 22 Times in 21 Posts
Fluid can get behind them even if they are fully seated. If the lever is squishy, it's air. You'll need to bleed them while rotating the caliper to make sure the inner chambers are higher than the outer chambers. If the lever is not squishy, then there is a likely blockage although is seems unlikely that would happen on both. If you have to take them apart again, use red rubber grease on the seals when reinstalling them.
'61 Clubman's Gold Star, '13 Duke 690, '13 Daytona 675R (track bike), '17 Superduke GT, '18 Street Triple RS