Working on both bodies, undo and remove the four screws and slide off the filter support.
![](https://motoinstruction.ru/img/aprilia/17/123203.jpg)
Remove the upper plate.
![](https://motoinstruction.ru/img/aprilia/17/123204.jpg)
Remove both bodies.
Upon refitting, replace the throttle body gasket with a new one of the same type.
![](https://motoinstruction.ru/img/aprilia/17/123205.jpg)
Working on both bodies, undo and remove the two plate screws.
![](https://motoinstruction.ru/img/aprilia/17/123206.jpg)
Remove the plate.
Working on both bodies, undo and remove the screw and detach the body.
![](https://motoinstruction.ru/img/aprilia/17/123207.jpg)
Working on the body in question, remove the injector, slide off the clip and the injector itself.
![](https://motoinstruction.ru/img/aprilia/17/123208.jpg)
Caution! Never undo the screws in the figure.
![](https://motoinstruction.ru/img/aprilia/17/123209.jpg)
![](https://motoinstruction.ru/img/aprilia/17/123210.jpg)