Checking The Stator Winding; Checking The Peak Current; Voltage Regulator/Rectifier - Specifications - PIAGGIO X9 500 cc Service Manual

Checking the stator winding

Warning
- The check can be performed with the
stator in place.
1) Remove the undersaddle compartment door
2) Detach the connector between stator and regulator
with the three yellow cables.
3) Measure the resistance between each of the yellow
terminals and the other two.
Resistance:
4) Check that each yellow wire is insulated from earth.
5) If the resistance is not as specified, replace the stator.

Checking the peak current

- With the engine off and swithboard "ON", turn the
vehicle lights on and let the battery tension set to 12V.
- Connect the amperometric pliers to the 2 outlet re-
charge positive poles of the regulator.
- With lights on, start the engine and read the value on
the pliers with the engine running at high speed.
With efficient battery, the measured value is: > 20A
Voltage regulator/rectifier
Specifications
Voltage regulator/rectifier
0.2 - 1 Ω
ITEM
Type
Voltage
Electrical equipment
STANDARD VALUE
Transistorized, non-adjustable, three-phase
14 - 15V at 5000 rpm with lights off
4
4 - 13