PIAGGIO 500 cc User Manual

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9
Fuel injection
MINIMUM CARBURATION REGULATION
The fuel injection system control unit is programmed to guarantee optimum carburation during use on the road.
Minimum carburation necessitates a refinement destined to compensate for the productive tollerances and
adjustments of the engine.
This regulation is carried out by modifying the opening time of the injector when the engine is idling.
To carry out the regulation, proceed as follows:
Preheat and check reset of the exhaust gas analyzer
494929.
Remove the plug of the exhaust manifold and connect
the extension with the intake for the analyser tube.
Minimum carburation regulation must be carried out on an engine in good working condition.
Preventive checks:
- spark plug
- air filter
- good air intake system seal
- good exhaust system seal
- valves play
- fuel filter
- fuel pressure
Connect the diagnosis tester 020460Y see page 9-17.
Set ignition to "ON" with switch in position "RUN" and side stand raised.
Select the “ERRORS “ function from the menu
Check the presence of any anomalies.
YES
NO
Select the “PARAMETERS “ function
from the menu
Repair according to the
indications given.

PIAGGIO 500 cc Specifications

General

Brand	PIAGGIO
Model	500 cc
Category	Engine
Language	English