814 Repair Manual — Volume I — Page 104

Slacken the lock-nut (3) and turn the adjusting screw (2) until the gauge registers a pressure of 2 kg/cm2 (28.5 psi). If this pressure cannot be obtained by adjusting, the pressure regulator (1) is defective ; replace it. IMPORTANT The setting of the pressure regulator has a great influence on fuel consumption and on the of the exhaust gases. 2. Press the « Pump» button briefly a) If the pressure falls rapidly below 1.2 kg/cm2