PIAGGIO MSS ZIP 100 4T, Service Manual

Page: 54 / 192

A. Flashing warning light
B. High-beam warning light
C . Low fuel warning light
D . Instrument panel bulb
E . Instrument panel bulb
Checks and inspections
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 a sight control of the electrical connections,
use a specific tester to measure the stator winding
and the pick-up.
If checks on the loading coil, pick-up detect irreg-
ularities, replace the stator and the failing com-
ponents .
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
Electrical system
MSS ZIP 100 4T
ELE SYS - 54