linked brakes, Truly a pain to bleed.
When i bought my '99 vfr the front brakes were spongy so i bled them without buying a manual.
WARNING! There are 2 bleed valves on front calipers. The one in the middle is for rear brake action of linked brakes. This is what I bled without consulting manual.
To bleed front brakes, only use the top bleeder at the uppermost of fr calipers. Do the left side first because the line is farther from the master cylinder. It only takes 4 good suctions with suction type brake bleeder to empty the reservoir, a helper would be nice.
Then the right side and Voila, a nice hard fr brake lever!