PIAGGIO 500 cc User Manual

Fuel injection
9 - 14
6) IRREGULAR RUNNING OF THE ENGINE WITH THROTTLE VALVE SLIGHTLY OPEN
Proceed with the following controls:
Air intake system cleanliness
Intake system seal
Ignition system
Parameter reliability
TPS reset carried out correctly
Analysis of exhaust gas taken prior to the catalytic
converter
Air filter
Choke and throttle valve
Supplementary air duct and stepper
Air intake hose
Filter box
Check spark plug wear
Throttle valve position signal
Coolant temperature signal
Air intake temperature signal
Spark lead
Trimmer value adjustment (CO% adjustment)
Intake system seal (infiltrations)
Intake manifold-head
Throttle body-manifold
Air intake hose
Filter box
Fuel supply (pressure low)
Analysis of exhaust gas prior to the catalytic converter
Fuel pump
Pressure regulator
Fuel filter
Injector capacity
Trimmer value adjustment (CO% adjustment)
Exhaust system seal (infiltrations)
Manifold-head
Manifold-silencer
Analyser socket
Silencer soldering
Presence of anomalies revealed through injection
self-diagnosis
Pump relay (see page 9-41)
H.V. coil (see page 9-68)
Injector (see page 9-62)
Phase revolutions sensor (see page 9-64)
Air temperature
Coolant temperature
Atmospheric pressure

PIAGGIO 500 cc Specifications

General

Brand	PIAGGIO
Model	500 cc
Category	Engine
Language	English