Caution: Do not slacken the fasteners securing the throttle valve stubs to the throttle valve rail.
- Remove left and right fairing side sections.
See Group 46.
Warning: Comply with safety precautions when handling or working with fuel.
- Remove fuel tank.
See Group 16.
- Remove left air outlet duct.
![](https://motoinstruction.ru/img/bmw/21/127197.jpg)
Disconnect hose (arrow) from crankcase breather.
Remove intake air silencer.
Note: It is not necessary to disconnect the fuel hoses or remove the cable ties from the fuel injection rail.
Remove fuel injection rail.
![](https://motoinstruction.ru/img/bmw/21/127198.jpg)
- Disconnect plug (4) for switch of cruise-control system.
- Disconnect the earth (ground) cable (3) from the throttle valve rail.
- Disconnect plug of throttle-valve potentiometer (2).
- Disconnect plug of throttle-valve actuator (1).
- [Activated charcoal filter] Disconnect breather hose to timing valve from y-piece.
- Slacken screws securing hose clips at intake stubs.
- Remove throttle-valve rail from intake stubs.
![](https://motoinstruction.ru/img/bmw/21/127199.jpg)
Caution: Do not remove retaining plate (6): the screws locate the throttle valve stubs.
- Disengage throttle-opener cable (7) from its pull at the throttle valve rail.
![](https://motoinstruction.ru/img/bmw/21/127200.jpg)
- Remove circlip (8).
- Disengage throttle-closer cable (5) from its pull at the throttle valve rail and remove throttle-closer cable (5).
- Disengage Bowden cable of cruise-control system.
- Installation is the reverse of the removal procedure: pay particular attention to the following.
![](https://motoinstruction.ru/img/bmw/21/127201.jpg)
Note: Note the installed positions of the hose-clamp screws (arrows).
Caution: After installing, check that Bowden-cable pulls at throttle valve stubs move freely.
- Check play of Bowden cables, adjust if necessary
See Group 00.
Tightening torques:
- Fuel injection rail to cylinder head — 9 Nm