Air Circuit - MOTO GUZZI Daytona RS Workshop Manual

Pressure Regulator «4»
The pressure regulator is needed in order to maintain a constant pressure difference on the injectors.
The pressure regulator is a membrane differential type that is set to 3 ± 0.2 bar during the assembling.
If the fuel pressure exceeds the setting an internal duct is opened and the fuel in excess re flows toward the tank.
Remember that in order to have a constant pressure difference on the injectors, the pressure difference between
the fuel pressure and the intake pressure must be constant.
12.4 AIR CIRCUIT (Fig. 12-04)
The air circuit includes: the throttle body and the air filter system.
Air intake and throttle body.
The throttle opening controls the quantity of induction air on each cylinder.
The air induction for the minimum r.p.m. goes through a by-pass channel which is trimmed by a screw. Turning
the screw its possible to control the minimum air intake and therefore the minimum r.p.m.
A second screw controls the right closure position of the throttle in order to avoid possible friction blockage with
the body walls. This screw must not used to set the minimum r.p.m.
12-04
106