PIAGGIO MP3 500 i.e. SPORT Service Station Manual page 254

MP3 500 i.e. SPORT Business_LT_ ABS-ASR_EU_USA (2015)
Injection
N.B.
THE UNITS OF MEASUREMENT CONTAINED IN THIS CHAPTER ARE EXPRESSED IN TERMS
OF THE DECIMAL METRIC SYSTEM. TO REFER TO THE UNIT OF MEASUREMENT EXPRESSED
IN TERMS OF THE ANGLO-SAXON SYSTEM, SEE THE «CHARACTERISTICS» CHAPTER.
KEY
1. Injection ECU
2. Injector
3. Engine temperature sensor
4. HV coil
5. Engine speed sensor
6. Lambda sensor
7. Fuel pump
8. Injection load relay
9. Diagnostic socket
10. Battery
RIU Injection system
This is an integrated ignition and injection system.
Injection is indirect in the manifold through an electro-injector.
Injection and ignition are timed on the 4-stroke cycle using a tone wheel keyed onto the crankshaft (24-2
teeth) and a reluctant variation (pick-up) sensor.
Carburetion and ignition are managed on the basis of the engine revs and throttle valve opening. Further
corrections are made according to the following parameters:
INJEC - 254