EFI SYSTEM — Fuel System FI-89 2. INSTALL DELIVERY PIPE WITH INJECTORS (a) Install the six insulators into the injector hole of the cylinder head. (b) Install the black rings on the upper portion of each of the three spacers. Then install the spacers on the delivery pipe mounting hole of the cylinder head. (c) Place the injectors together with the delivery pipe on the cylinder head. (d) Check that the injectors rotate smoothly. HINT: If the injectors do not rotate smoothly, the probable cause is incorrect installation of O-rings. Replace O-rings. (e) Install the three spacers and bolts. Torque the bolts. Torque: 180 kg·cm (13 ft·lb, 18 N·m) 3. INSTALL PRESSURE REGULATOR (a) Fully loosen the lock nut of the pressure regulator. (b) Apply a light coat of gasoline to a new O-ring, and install it to the pressure regulator. (c) Thrust the pressure regulator completely into the delivery pipe by hand. (d) Turn the pressure regulator counterclockwise until the outlet faces in the direction indicated in the illustration. Black Ring U1680 F11E79 F11E80 F11E72 O-Ring F12E40 Pressure Regulator Delivery Pipe Front F11E63