PIAGGIO MP3 400 i.e., Service Manual, Page: 131 / 394

The limiter is calibrated to 10 kgm (100 Nm); this component protects the structure of the engine and
the starter kinematic mechanism in the event of incorrect starting with consequent inverse rotations.
The freewheel is used for a sufficiently silent starting.
The starter control (energised remote control) is slaved to enabling signals by the side stand and the
emergency OFF/RUN switch, which does not allow starting given dangerous conditions.
The starter control circuit is not controlled by the immobilizer system, therefore before insisting on the
starter system, check the consensus of the immobilizer.
As for checking the consensus circuit, see the "Electrical system" chapter, while for checking the engine
shaft control transmission, follow what is described in the "Flywheel and starter system" chapter.
Removing the starter motor
N.B.
THIS OPERATION MAY ALSO BE CARRIED OUT WITH FLYWHEEL COVER ASSEMBLED.
- Loosen the two fastening screws.
- Extract the complete starter motor.
Removing the flywheel magneto
N.B.
IF YOU MUST REMOVE THE FLYWHEEL, IT IS NECESSARY TO REMOVE THE CHAIN GUIDE
SLIDING BLOCK RETAIN PLATE FIRST.
- Unscrew the 3 fastening screws and remove the
chain guide sliding block retain plate and the start-
up rim.
MP3 400 i.e.
Engine
ENG - 39