Air cleaner

The air sucked through a dynamic inlet is filtered by a cartridge filter element and reaches the air flow meter which measures the quantity and temperature. A throttle valve, controlled by the accelerator cable regulates the quantity of air sucked into the air intake box. An electromagnetic valve for additional air by-passes the throttle valve enabling the idle r.p.m. to be kept constant under particular engine conditions. Fuel and oil vapours flow to the air supply system and, through the air intake box, are sucked into the combustion chamber in order to limit the toxic emissions.

The vacuum intake pipe for the fuel pressure regulator and the vacuum intake pipe for the servo brake are also connected to the air intake box.

For information regarding the single components of the system refer to the paragraphs below.

AIR CLEANER

The cleaner is of the cartridge type with an easily replaceable filter element which traps the dust and dirt particles present in the air sucked in by the engine. It also acts as an "intake silencer".

REPLACING THE FILTER ELEMENT

1. Loosen the clamps connecting the corrugated sleeve to the air- flow meter.
2. Unscrew the screws securing the air cleaner cover.
3. Unscrew the screw securing the air-flow meter support bracket.

1. Raise the filter cover-air flow meter assembly without disconnecting the electrical connection.
2. Remove the filter element.