PIAGGIO 2005 XEVO 400ie, Руководство по ремонту

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Refitting the butterfly valve
- Carry out the removal operations but in reverse
order, tighten the 3 fixing screws to the prescribed
torque.
Locking torques (N*m)
Throttle body fixing screws
11 ÷ 13
Pump supply circuit
The control unit starts the pump in the following conditions:
- by setting the switch to « ON » with the emergency switch to « RUN » and side stand raised. The pump
does not supply.
- If the rpm-timing signal is received. Continuous supply.
The initial timing is useful to bleed the system especially after a stop with engine in temperature. In
these conditions, the fuel altered by boiling will be mixed with that in the tank.
During use, the pump operation will be subject to the engine speed.
Circuit check
The injection system control unit is programmed to guarantee optimum carburetion during riding.
Idle mixture needs to be improved in order to compensate for productive tolerances and engine ad-
justments.
This adjustment is performed by modifying the injector opening time with the engine at idle speed.
To adjust, proceed as follows:
Idle mixture adjustment must be performed on an engine with good tune-in conditions.
First check:
- spark plug
- air filter cleaning
- throttle body cleaning
- suction system proper sealing
- exhaust system proper sealing
- valve clearance
- fuel filter
- fuel pressure
N.B.
IDLE SPEED IS OBTAINED BY PRE-CALIBRATING THE THROTTLE BODY AND THE ACTIVITY
OF THE STEPPER.
Injection
XEVO 400ie
INJEC - 194