Bleed 'Em

Before you put the bike back together, bleed the brakes according to the service manual. There is a specific sequence you must follow to bleed them properly. This is also the time to be watching your connections for any leakage! if you have a leak, more than likely the banjo bolt is not torqued tight enough, or you don't have a
flare-end mating up with the nipple correctly between the hard tube and the brakeline.