Remove the rubber cover 1.
Check the exhaust control valve actuator 2 for its movement when the ignition switch is turned on. If the exhaust valve actuator does not move, check exhaust valve actuator electrical circuit and exhaust valve carbon sticking. Check the exhaust control cable play. (7-12)
![](https://motoinstruction.ru/img/suzuki/24/129329.jpg)
- Remove the two bolts and cover.
![](https://motoinstruction.ru/img/suzuki/24/129330.jpg)
- Check the lock nuts tightness. If the lock nuts are loose, adjust the cable play and tighten the lock nuts.
Note: Install the rubber cover 1 correctly after inspecting it.
![](https://motoinstruction.ru/img/suzuki/24/129331.jpg)