1986-1987 Honda TRX350 FourTrax 4X4, 1987-1989 TRX350D Foreman 4X4 Service Manual, Page 191Get this manual
BRAKES BRAKE BLEEDING
Connect bleed hose to the bleed valve Pump up the system pressure with the lever until there are no air bubbles in the fluid flowing out of the reservoir small hole and lever resistance is felt1Squeeze the brake lever, open the bleed valve 12 turn and then close the valveNOTE Do not release the brake lever until the bleed valve has been closed
2Release the brake lever slowly and wait several seconds
after it reaches the end of its travelRepeat steps and until bubbles cease to appear in the fluid coming out of the bleed valveFill the fluid reservoir to the upper level markReinstall the diaphragm and reservoir cover, and tighten the screws TORQUE: 1-2 Nm (0.1-0.2 kg-m, 0.7-1 .4 ft-Ibl