- 1). Insert threaded plugs into the master cylinder's outlet holes--the ones on the sides that the brake lines will connect to. Make sure the reservoir is properly seated on top of the cylinder with its grommets.
- 2). Fill the master cylinder and reservoir with fresh brake fluid.
- 3). Remove one of the plugs from its outlet hole.
- 4). Push the piston assembly on the cylinder to expel air from the cylinder. Place a finger on the open outlet hole, release the piston and wait for fluid to flow from the reservoir to the piston bore--this will take several seconds.
- 5). Repeat the previous step, pressing the piston so it forces your finger off the hole, until only brake fluid comes out the hole, then replace the plug.
- 6). Repeat the previous three steps for each of the outlet holes on the master cylinder.
- 7). Fill and top off the master cylinder reservoir with fluid and install the diaphragm and cover onto the reservoir.
previous post