BMW AG Motorcycle (F 650 GS). Manual - part 21

18.4

18.5

18 00 020 

Removing and installing 

exhaust system

18 11 301 

Removing and installing 

right-hand silencer

•

Remove number plate.

•

Remove the fastener (arrow) securing the silenc-
er to the rear frame.

•

Separate the right-hand silencer with balance 
pipe from the left-hand silencer and at the same 
time lift it clear of bracket (1).

•

If necessary, remove fasteners (2) and remove 
silencer guard (3).

•

Installation is the reverse of the removal proce-
dure.

18 11 301 

Removing and installing 

left-hand silencer

–

Remove right-hand silencer.

•

Remove the fastener securing the silencer to the 
rear frame.

•

Loosen clamp (6) for silencer.

•

Separate the left-hand silencer with connecting 
pipe from the exhaust manifold and at the same 
time lift it clear of bracket (7).

•

If applicable, remove silencer guard (4) and 
guard (5) for catalytic converter.

•

Installation is the reverse of the removal proce-
dure, pay particular attention to the following.

•

Make sure that the installed position (arrow) of 
the clamp for silencer (8) is correct.

X 

Tightening torques:

Guard to silencer ........................................... 9 Nm
Clamp for silencer ........................................ 55 Nm
Silencer to rear frame................................... 21 Nm

1

2

3

6

7

5

4

E180030

E180020

8

18.6

18 11 151 

Removing and installing 

exhaust manifold and oxygen sensor

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 cylin-
der head.

•

Remove the exhaust manifold and remove 
seal (4).

•

Remove oxygen sensor (2).

Installing exhaust manifold and oxygen sensor

L

 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. 

E180030

1

3

4

2

E180010

5

18.7

•

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 sen-
sor cable and the cable for the side-stand switch 
to the frame trussing.

–

Install the engine guard.

X 

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

18 12 212 

Replacing guard for silencer

–

Remove the lid of the glove compartment.

•

Remove the fastener (arrow) securing the turn in-
dicator at the handle and push the turn indicator 
aside.

•

Remove the fasteners securing the guard to 
silencer (2) and remove guard complete with 
damper washers (3).

•

Installation is the reverse of the removal proce-
dure.

X 

Tightening torques:

Guard to silencer ........................................... 9 Nm

E180020

1

E180010

E630010

E180031

2

3

18.8

21.1

Contents

Page

21

Technical Data

............................................................................................................................... 3

Clutch, components 

....................................................................................................................5

Removing and installing clutch 

............................................................................................6

Removing clutch

 ..............................................................................................................................6

Removing pressure plate .....................................................................................................................6
Disassembling and reassembling pressure plate .................................................................................6
Removing clutch plates, driver and clutch cage  ..................................................................................7
Installing clutch cage ...........................................................................................................................8
Installing driver  ....................................................................................................................................8
Installing pressure plate  ......................................................................................................................8
Removing and installing releaser shaft  ................................................................................................9

Installing clutch

 ..............................................................................................................................10

21 Clutch

21.2

21.3

21

Technical Data

F 650 GS

Clutch

Type

Pull-action multi-plate clutch in oilbath

Clutch plate diameter

mm (in) 144 (5.7)

Manual effort required

N 85 (at 40 mm/1.6 in from pivot point)

Operation

mechanical

Wear limits:
Distortion of lined plates
Distortion of steel plates
Total height of lined plates
Total height of plate assembly

mm (in)
mm (in)
mm (in)
mm (in)

0.25 (0.010)
0.15 (0.006)
27.5 (1.08)
39.1 (1.54)