Removing exhaust manifold and oxygen sensor
Remove engine guard.
Loosen clamp (1) for silencer.
Release cable tie (arrow) on right-hand frame trussing.
Disconnect plug (5) for the oxygen sensor.
Remove the left footrest plate.
Extend side stand.
Remove fasteners (3) securing manifold to cylinder head.
Remove the exhaust manifold and remove seal (4).
Remove oxygen sensor (2).
Installing exhaust manifold and oxygen sensor
Note: It is not necessary to grease the threads if you are installing a new oxygen sensor.
Lightly coat the threads of the oxygen sensor with Optimoly TA.
Tighten the oxygen sensor at the hexagon with socket wrench insert, BMW No. 11 7 020.
Position a new gasket (4) on the manifold.
Introduce the exhaust manifold into the left-hand silencer and into the cylinder head.
Uniformly tighten the fasteners securing the manifold to the cylinder head.
Tighten clamp (1) for the silencer, making sure that the clamp is correctly positioned (arrow).
Connect the plug for the oxygen sensor.
Using a cable tie (arrow), secure the oxygen sensor cable and the cable for the side-stand switch to the frame trussing.
Install the engine guard.
Tightening torques:
- Oxygen sensor to exhaust: 45 Nm
- Exhaust manifold to cylinder head: 20 Nm
- Clamp for silencer: 55 Nm
- Engine guard to frame: 9 Nm