First fill the brake oil pump while lying flat to no air remains; the screw port is large enough to observe bubbles.Next, locate the bleed screw above the tubing connection and install it with a good twist but do not fully tighten—the side hole of the screw remains exposed.Connect the pump to the tubing and position the oil cup at the highest point.Pump the handle approximately ten times.Then wait five to ten minutes without performing any further action.Brake fluid will begin to flow from the exposed side hole of the bleed screw; once fluid appears, tighten the screw to complete the bleeding process.To verify successful hydraulic clutch bleeding, push the master cylinder piston fully into the body, then grip the lever and pull it slowly—the lever should move about three centimeters before encountering resistance and should not reach the handlebar.During final setup, fully extend the clutch, secure the master cylinder in place, and the clutch lever is fully released with the system fully stretched.Color: Blue, Red, Black, Silver.Main Material: Aluminum.Whole Length: 140 mm.Thread Size: M10 x 1.25 mm.Fitment: Universal for most motorcycles.Quantity: 1 pc.Package Contents: 1 x Motorcycle hydraulic clutch brake pump