Disconnect the wiring connector (2) of the starter contactor from the wiring harness.
![](https://motoinstruction.ru/img/ducati/18/124849.jpg)
Disconnect the battery (Battery).
Remove the contactor from its seat.
![](https://motoinstruction.ru/img/ducati/18/124850.jpg)
Remove the protective caps (A).
Unscrew the nuts (4), taking care to recover the spring washers (3).
Remove the starter motor-contactor cable (2).
Remove the contactor-battery cable (5).
Disconnect the wiring connector (2) of the starter contactor from the wiring harness.
![](https://motoinstruction.ru/img/ducati/18/124851.jpg)
Checking operation of the starter contactor
Apply 12 V (battery voltage) across the positive terminal (A) and negative terminal (B) of the connector.
![](https://motoinstruction.ru/img/ducati/18/124852.jpg)
![](https://motoinstruction.ru/img/ducati/18/124853.jpg)
With a multimeter connected between the two poles (threaded studs (C) and (D)) of the contactor, check for electrical continuity (Using a multimeter to check the electrical systems). If there is no electrical continuity, renew the contactor.
On refitting, ensure that studs (C) and (D) are not oxidized; apply water repellent spray.
Position the cables (2) and (5) on the contactor terminals, orienting them as shown in the figure.
Insert the two bolts (3) and the nuts (5).
Tighten the nuts (4) to the specified torque (Frame torque settings).
![](https://motoinstruction.ru/img/ducati/18/124854.jpg)
Fit the contactor by inserting it on the tabs (E), orienting it as shown in the figure.
Refit the wiring connector (2) to the wiring and refit the protective caps (A).
![](https://motoinstruction.ru/img/ducati/18/124855.jpg)