PIAGGIO Liberty 50 Catalyzed, Workshop Manual

Page: 47 / 165

In case the cause of ignition failure or malfunction
cannot be easily identified at sight, first of all re-
place the control unit by another one in operating
conditions.
Remember that the engine must be off to discon-
nect and replace the control unit.
If after replacement the vehicle starts properly, the
control unit is failing and must be replaced.
If the failure persists, check the generator and the
stator components as follows:
After visually checking the electrical connections,
use a specific tester to measurement the stator
winding and the pickup (see table).
If any failure is found after checking the loading coil
and the pick-up, replace the stator and the dam-
aged parts.
Disconnect the connector on the flywheel cover
and measure the resistance between either con-
tact and the earthing.
Specific tooling
020331Y Digital multimeter
PICK-UP CHECK
Specification Desc./Quantity
1 1) Brown cable and earth ~ 170
Ω
STATOR WINDING CHECK
Specification Desc./Quantity
1 1) Black cable and earth ~ 1
Ω
Specifications
- Rated voltage 12V.
- Rated power 0.25 kW.
Liberty 50 Catalyzed
Electrical system
ELE SYS - 47