2007 BMW MOTORRAD K 1200 GT wheel torque

ASC interventionASC warning light quick-
flashes.
The ASC has detected a degree
of instability at the rear wheel
and has intervened to reduce
torque. The warning light flashes
for longer than ASC intervention
lasts. This affords the rider visual
feedback on control intervention
even after the critical situation
has been dealt with.
Self-diagnosis not completed
ASC warning light slow-
flashes.
Self-diagnosis did not complete,
so the ASC function is not avail-
able. The engine must be run-
ning and the motorcycle must
reach a speed of at least 5 km/h
in order for ASC self-diagnosis to
complete. Pull away slowly. Bear in mind
that the ASC function is not available until self-diagnosis has
completed.
ASC deactivated ASC warning light shows.
The rider has switched off the
ASC system.
with OE Automatic Stability
Control (ASC): Activate the ASC function
( 62)
ASC fault ASC warning light shows.
The ASC control unit has detec-
ted a fault. The ASC function is
not available. You can continue to ride. Bear
in mind that the ASC function
is not available. Bear in mind
the more detailed information
on situations that can lead to
an ASC fault ( 93). Have the fault rectified as
quickly as possible by a
specialist workshop, preferably
an authorised BMW Motorrad
dealer.
RDC warnings
OE
Mode of presentation
Warning symbol 2indicates a
critical tyre pressure; the corres-
ponding reading flashes.
If the critical value is close to the
limit of the permissible tolerance
range, 'General' warning light 1
shows yellow. If the tyre pres-
sure registered by the sensor is
336zStatus indicators

exceptional riding conditions can
lead to a fault message being
issued.
Exceptional riding
conditions:Heating up with the motorcycle
on the centre stand or an auxil-
iary stand, engine idling or with
a gear engaged.
Rear wheel locked by the en-
gine brake for a lengthy period,
for example while descending
off-road.
If a fault message is issued on
account of exceptional riding
conditions as outlined above, you
can reactivate the ABS function
by switching the ignition off and
on again.
What significance
devolves on regular
maintenance?
Invariably, a technical sys-
tem cannot perform beyond
the abilities dictated by its level
of maintenance.
In order to ensure that the BMW
Motorrad ABS is always main-
tained in optimum condition, it
is essential for you to comply
strictly with the specified inspec-
tion intervals.
Reserves for safetyThe potentially shorter braking
distances which BMW Motorrad
Integral ABS permits must not be
used as an excuse for careless
riding. ABS is primarily a means
of ensuring a safety margin in
genuine emergencies.
Take care when cornering. When
you apply the brakes on a corner,
the motorcycle's weight and momentum take over and even
BMW Motorrad Integral ABS is
unable to counteract their effects.
Electronic engine
management with BMW
Motorrad ASC
OE
How does ASC work?The BMW Motorrad ASC com-
pares the speed of rotation of the
front wheel and the rear wheel.
The differential is used to com-
pute slip as a measure of the
reserves of stability available at
the rear wheel. If slip exceeds a
certain limit the electronic engine
management system intervenes,
adapting engine torque accord-
ingly.
692zEngineering details

If the front wheel lifts clear of the
ground under severe accelera-
tion, the ASC reduces engine
torque until the front wheel re-
gains contact with the ground.
Under these circumstances,
BMW Motorrad recommends
rolling the throttle slightly closed
so as to restore stability with the
least possible delay.
When riding on a slippery sur-
face, never snap the throttle
twistgrip fully closed without
pulling the clutch at the same
time. Engine braking torque can
cause the rear wheel to lock, with
a corresponding loss of stability.
The BWM Motorrad ASC is un-
able to control a situation of this
nature.
Tyre pressure
monitoring RDC
OE
FunctionA sensor integrated into each
tyre measures the air temperat-
ure and the air pressure inside
the tyre and transmits this in-
formation to the control unit.
Each sensor has a centrifugal-
force tripswitch that does not
enable transmission of the meas-
ured values until the motorcycle
has accelerated to about 30 km/
h. The display shows
--
for
each tyre until the tyre-pressure
signal is received for the first
time. The sensors continue to
transmit the measured-value sig-
nals for approximately 15 minutes
after the motorcycle comes to a
stop.
The control unit can adminis-
trate four sensors, so two dif-
ferent sets of wheels with RDC
sensors can be alternated on the motorcycle. An error mes-
sage is issued if wheels without
sensors are fitted to a motorcycle
equipped with an RDC control
unit.
Temperature
compensationThe tyre-pressure readings
shown by the multifunction
display are temperature-
compensated; the reference tyre
temperature for these readings
is always 20 °C. The air lines
available to the public in petrol
stations and motorway service
areas almost invariably show
temperature-dependent tyre
pressures, so in most instances
these gauge readings will not
tally with the readings shown by
the multifunction display.
694zEngineering details

the routing of the sensor cable
of the brake-pad wear detector.
Raise front of motorcycle until
the front wheel can turn freely.
BMW Motorrad recommends
the BMW Motorrad front-wheel
stand for lifting the motorcycle.
Install the front-wheel stand
( 122)
Remove right-hand axle clamp-
ing screw5.
The left axle clamping
screw locates the threaded
bush in the front suspension.
If the threaded bush is not
correctly aligned the gap between the ABS sensor ring
and the ABS sensor will not be
correct and this can cause the
ABS to malfunction or allow the
ABS sensor to be damaged.
In order to ensure that the
threaded bush remains correctly
aligned, do not slacken or
remove the left axle camping
screw.
Remove quick-release axle 6,
while supporting the wheel.
Lower the front wheel to the
ground between the front forks.
Take care not to dam-
age the ABS sensor when
rolling out the front wheel.
Note the ABS sensor when
rolling out the front wheel.
Roll the front wheel forward to
remove.
Installing front wheel
ABS malfunctions on ac-
count of incorrect speed
signal.
Segmentation differs between in-
dividual types of sensor ring; it is
very important to ensure that the
correct sensor ring is installed.
Install only the sensor ring that
matches the motorcycle's con-
struction status.
Threaded fasteners not
tightened to the specified
torque can work loose or their
threads can suffer damage.
Always have the security of the
fasteners checked by a specialist
workshop, preferably an author-
ised BMW Motorrad dealer.
The front wheel must be
installed right way round to
rotate in the correct direction.
Note the direction-of-rotation ar-
rows on the tyre or the wheel
rim.
8116zMaintenance

There is a risk of damaging
parts of the front brake,
particularly the BMW Motorrad
Integral ABS, in the course of the
procedure described below.
Take care not to damage the
brake system, in particular the
ABS sensor with cable and the
ABS sensor ring.
Take care not to dam-
age the ABS sensor when
rolling in the front wheel.
Note the ABS sensor when
rolling in the front wheel.
Roll the front wheel into posi-
tion in the front suspension. Raise the front wheel, insert
quick-release axle
6and tight-
en to specified torque.
Quick-release axle in
threaded bush
50 Nm
Tighten right axle clamping
screw 5to the specified tight-
ening torque.
Clamping screw for
quick-release axle in
wheel carrier
19 Nm
Remove the front-wheel stand. Install securing screws
2on
left and right and tighten to
specified tightening torque.
Front brake caliper to
wheel carrier
30 Nm
8117zMaintenance

Remove screw1from silencer
cover 2.
Pull the cover to the rear to
remove.
Remove clamp 3from the si-
lencer. Do not remove the sealing
grease from the clamp.
Remove screw
4for the brack-
et of the silencer from the rear
footrest.
Turn the silencer down.
Engage first gear. Place a support underneath
the rear wheel and remove
studs
5.
Lower the rear wheel to the
ground.
Roll the rear wheel out toward
the rear.
Installing rear wheel
Threaded fasteners not
tightened to the specified
torque can work loose or their
threads can suffer damage.
Always have the security of the
fasteners checked by a specialist
workshop, preferably an author-
ised BMW Motorrad dealer.
8119zMaintenance

Roll the rear wheel into position
at the rear-wheel adapter.
Seat the rear wheel on the
rear-wheel adapter.
Install wheel studs5and tight-
en to the specified torque in
diagonally opposite sequence.
Rear wheel to wheel
flange
Tightening sequence: tight-
en in diagonally opposite se-
quence
60 Nm Turn the silencer to its initial
position.
Install screw
4for the brack-
et of the silencer in the rear
footrest, but do not tighten it at
this point. Align clamp
3on the silencer
with mark A(arrow) on oxygen
sensor B.
Tighten clamp 3on the silen-
cer to the specified tightening
torque.
Silencer to manifold
35 Nm
8120zMaintenance

If the gap between the rear
wheel and the silencer is
too small, the rear wheel can
overheat.
The gap between the rear wheel
and the silencer must be at least
15 mm.
Tighten screw 4for the brack-
et of the silencer in the rear
footrest to the specified torque.
Silencer to rear footrest
22 Nm Push silencer heat shield
2
with guide Ainto retainer B.
Install screw 1of the silencer
heat shield.
Front-wheel standUseA front-wheel stand for simple,
safe changing of the front wheel
is available from BMW Motorrad.
The BMW special tool number
is 36 3 971 and the front-wheel
stand is available from your au-
thorised BMW Motorrad dealer.
You also need the adapters with
the BMW special tool number
36 3 973.
The BMW Motorrad front
wheel stand is not designed
to support motorcycles not fitted
with a centre stand or without
other auxiliary stands. A motor-
cycle resting only on the front
wheel stand and the rear wheel
can topple.
Place the motorcycle on its
centre stand or another auxiliary
stand before lifting the front
wheel with the BMW Motorrad
front-wheel stand.
8121zMaintenance