2010 BMW MOTORRAD G 650 GS brakes

What is the design
baseline for BMW
Motorrad ABS?
Within the limits imposed byphysics, BMW Motorrad ABS en-sures directional stability on anysurface. The system is not op-timised for special requirementsthat apply under extreme com-petitive situations off-road or onthe track.
Special situations
The speeds of the front and rearwheels are compared as onemeans of detecting a wheel'sincipient tendency to lock. If thesystem registers implausible val-ues for a lengthy period the ABSfunction is deactivated for safetyreasons and an ABS fault mes-sage is issued. Self-diagnos-is has to complete before faultmessages can be issued.
In addition to problems with theBMW Motorrad ABS, exceptional
riding conditions can lead to afault message being issued.Exceptional ridingconditions:
Riding for a lengthy period withthe front wheel lifted off theground (wheelie).
Rear wheel rotating with themotorcycle held stationary byapplying the front brake (burn-out).
Heating up with the motorcycleon the centre stand or an auxil-iary stand, engine idling or witha gear engaged.
Rear wheel locked for a lengthyperiod, for example while des-cending off-road.
If a fault message is issued onaccount of exceptional ridingconditions as outlined above, youcan reactivate the ABS functionby switching the ignition off andon again.
What significance
devolves on regular
maintenance?
Invariably, a technical sys-tem cannot perform beyondthe abilities dictated by its levelof maintenance.
In order to ensure that the BMWMotorrad ABS is always main-tained in optimum condition, itis essential for you to complystrictly with the specified inspec-tion intervals.
Reserves for safety
The potentially shorter brakingdistances which BMW MotorradABS permits must not be usedas an excuse for careless riding.ABS is primarily a means of en-suring a safety margin in genuineemergencies.
Take care when cornering. Whenyou apply the brakes on a corner,the motorcycle's weight and
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zEngineering details

Topping up engine oil
Make sure the ground is leveland firm and place the motor-cycle on its stand.
Wipe the area around the fillerneck clean.
Remove oil dipstick1.
Damage to the enginecan result if it is operatedwithout enough oil, but the samealso applies if the oil level is toohigh.
Always make sure that the oillevel is correct.
Top up the engine oil to thespecified level.
Check the engine oil level(66).
Install the oil dipstick.
Brake system
Reliability
A fully functional brake system isa basic requirement for the roadsafety of your motorcycle.
Do not ride the motorcycle if youhave any doubts about the de-pendability of the brake system.
Under these circumstances havethe brake system checked by aspecialist workshop, preferablyan authorised BMW Motorraddealer.
Incorrect working practicesendanger the reliability ofthe brakes.
Have all work on the brake sys-
tem undertaken by trained andqualified specialists.
Check operation of the
brakes
Pull the handbrake lever.
The pressure point must beclearly perceptible.
Press the footbrake lever.
The pressure point must beclearly perceptible.
If pressure points are not clearlyperceptible:
Have the brakes checked by aspecialist workshop, preferablyan authorised BMW Motorraddealer.
Brake pads
Check the front brake pad
thickness
Make sure the ground is leveland firm and place the motor-cycle on its stand.
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68
zMaintenance

Visually inspect the brake padsto ascertain their thickness.Viewing direction: from the reartoward brake caliper1.
Brake-pad wear limit,rear
min 1.0 mm (Friction padonly, without backing plate.The wear indicators must beclearly visible.)
If the wear indicating mark is nolonger visible:
Brake pads worn past theminimum permissible thick-ness can cause a reduction inbraking efficiency and undercertain circumstances they cancause damage to the brake sys-tem.
In order to ensure the dependab-ility of the brake system, do notpermit the brake pads to wearpast the minimum permissiblethickness.
Have the brake pads replacedby a specialist workshop,preferably an authorised BMWMotorrad dealer.
Brake fluid
Check the brake-fluid
level, front brakes
A low fluid level in thebrake reservoir can allow airto penetrate the brake system.This significantly reduces brakingefficiency.
Check the brake-fluid level atregular intervals.
Make sure the ground is leveland firm and hold the motor-cycle upright.
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70
zMaintenance

with centre standOE
Make sure the ground is leveland firm and place the motor-cycle on its centre stand.
Move the handlebars to thestraight-ahead position.
Check the brake fluid level infront reservoir1.
Wear of the brake padscauses the brake fluid levelin the reservoir to sink.
Brake fluid level, front
DOT4 brake fluid
It is impermissible for thebrake fluid level to drop be-low the MIN mark. (Brake-fluid reservoir horizontal)
If the brake fluid level drops be-low the permitted level:
Have the defect rectified asquickly as possible by a spe-cialist workshop, preferablyan authorised BMW Motorraddealer.
Checking brake-fluid
level, rear brakes
A low fluid level in thebrake reservoir can allow airto penetrate the brake system.This significantly reduces brakingefficiency.
Check the brake-fluid level atregular intervals.
Make sure the ground is leveland firm and hold the motor-cycle upright.
with centre standOE
Make sure the ground is leveland firm and place the motor-cycle on its centre stand.
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71
zMaintenance

Care products
BMW Motorrad recommendsthat you use the cleaning andcare products you can obtainfrom your authorised BMWMotorrad dealer. The substancesin BMW Care Products havebeen tested in laboratories and inpractice; they provide optimisedcare and protection for thematerials used in your vehicle.
The use of unsuitablecleaning and care productscan damage vehicle components.
Do not use solvents such as cel-lulose thinners, cold cleaners,fuel or the like, and do not usecleaning products that containalcohol.
Washing motorcycle
BMW Motorrad recommendsthat you use BMW insect re-mover to soften and wash offinsects and stubborn dirt on
painted parts prior to washingthe motorcycle.
To prevent stains, do not washthe motorcycle immediately afterit has been exposed to strongsunlight and do not wash it in thesun.
Make sure that the motorcycleis washed frequently, especiallyduring the winter months.
To remove road salt, clean themotorcycle with cold water im-mediately after every trip.
After the motorcycle hasbeen washed, riddenthrough water or ridden inthe rain, the brake discs andpads might be wet and thebrakes might not take effectimmediately.
Apply the brakes in good timeuntil the brake discs and brakepads have dried out.
Warm water intensifies theeffect of salt.
Use only cold water to wash offroad salt.
The high pressure of steamcleaners can damage seals,the hydraulic brake system, theelectrical system, and the seat.
Do not use a steam jet or high-pressure cleaning equipment.
Cleaning easily
damaged components
Plastics
Clean plastic parts with waterand BMW plastic care emulsion.This includes in particular:
Windscreen and slipstream de-flectors
Headlight lens made of plastic
Glass cover of the instrumentcluster
Black, unpainted parts
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102
zCare

Technical data
Technical data
Troubleshooting chart . . . . . . . . . . . . . 106
Threaded fasteners . . . . . . . . . . . . . . . . 107
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Clutch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Transmission . . . . . . . . . . . . . . . . . . . . . . 111
Rear-wheel drive . . . . . . . . . . . . . . . . . . . 112
Running gear . . . . . . . . . . . . . . . . . . . . . . 112
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Wheels and tyres . . . . . . . . . . . . . . . . . . 113
Electrics . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . 117
Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Riding specifications . . . . . . . . . . . . . . . 11810
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zTechnical data

Brakes
Type of front brakehydraulically actuated disc brake with 2-pistonfloating caliper
Brake-pad material, frontSintered metal
Type of rear brakeHydraulically actuated 1-piston floating caliper withfixed brake disc
Brake-pad material, rearOrganic material
Wheels and tyres
Recommended tyre setsYou can obtain an up-to-date list of approvedtyres from your authorised BMW Motorrad dealeror on the Internet at "www.bmw-motorrad.com".
Front wheel
Front wheel, typeSpoked wheel
Front wheel rim size2.50" x 19"
Tyre designation, front100 / 90 - 19
Rear wheel
Rear wheel typeSpoked wheel
Rear wheel rim size3.00" x 17"
Tyre designation, rear130 / 80 - 17
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113
zTechnical data

AAbbreviations and symbols, 6
ABSControl, 18
Engineering details, 54
Self-diagnosis, 45
Switching off and on, 33
Warnings, 23
AccessoriesNotes, 58
Air filterPosition on the motorcycle, 13
Replacing, 91
BBatteryCharging battery whenconnected, 94
Charging battery whendisconnected, 94
Installation, 95
Maintenance instructions, 93
Removal, 94
Stowage, 11
BMW Motorrad service, 120
Brake fluidChecking fluid levels, 70
Reservoir, front, 13
Reservoir, rear, 13
Brake padsChecking brake-padthickness, 68
Running in, 46
BrakesChecking operation, 68
Notes, 47
Technical data, 113
BulbsNotes on replacement, 85
Replacing brake-light bulb, 90
Replacing high-beam headlightbulb, 85
Replacing low-beam headlightbulb, 85
Replacing rear light bulb, 90
Replacing side-light bulb, 87
Replacing turn indicatorbulb, 88
Technical data, 115
CCare, 101
CaseOperation, 59
ChainAdjusting sag, 76
Checking sag, 75
Checking wear, 76
Lubricating, 75
Checklist, 44
Clock, 15Adjusting, 29
ClutchAdjusting clutch lever, 34
Adjusting handlebar-leverplay, 74
Checking play, 73
Technical data, 111
Confirmation of maintenancework, 122
CoolantChecking fluid level, 72
Fore-and-aft tilt indicator, 11
Topping up, 73
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129
zIndex