OWNER’S MANUAL 2010
125 EXC EU
*3211483en*
3211483en
3211483en
1/2009
FOTO: MITTERBAUER
KTM Group Partner
KTM-Sportmotorcycle AG
A–5230 Mattighofen
www.ktm.com
INTRODUCTION
»
We would like to congratulate you on your purchase of a KTM motorcycle.
You are now the owner of a state-of-the-art sports motorcycle that guarantees to bring you lots of fun and
enjoyment, provided that you clean and maintain it appropriately.
Please insert the serial numbers of your motorcycle in the boxes below
ENGLISH
Frame number
Engine number
Key number
1
Stamp of dealer
COMSUMER INFORMATION FOR AUSTRALIA ONLY
Tampering with noise control system prohibited
Owners are warned that the law may prohibit:
(a) The removal or rendering inoperative by any person other than for purposes of maintenance, repair or
replacement, of any device or element of design incorporated into any new vehicle for the purpose of
noise control prior to its sale or delivery to the ultimate purchaser or while it is in use; and
(b) the use of the vehicle after such device or element of design has been removed or rendered inoperative by any person.
All information contained is without obligation. KTM-Sportmotorcycle AG particularly reserves the right
to modify any equipment, technical specifications, prices, colors, shapes, materials, services, service work,
constructions, equipment and the like so as to adapt them to local conditions or to cancel any of the
above items, all without previous announcement and without giving reasons. KTM may stop manufacturing certain models without previous notice. KTM shall not be held liable for any deviations of availability and/or ability to deliver, illustrations, descriptions, printing and/or other errors. The illustrated models
partly contain extra equipment, which is not applied to standard models.
© 2009 by KTM-SPORTMOTORCYCLE AG, Mattighofen AUSTRIA; All rights reserved; Reprint, also in
extracts, with written allowance of KTM-SPORTMOTORCYCLE AG, Mattighofen only.
In accordance with the international quality management ISO 9001 standard, KTM uses
quality assurance processes that lead to the highest possible product quality.
IMPORTANT
»
INTENDED PURPOSE
KTM sports motorcycles are designed and constructed to resist the usual wear and tear of normal use in
competitions.
The motorcycles comply with the regulations and categories currently in effect with the leading international motorcycle associations.
The EXC models are only allowed on public roads in the original homologated (throttled) version. Without
this performance restriction (i.e. dethrottled), these models are only allowed to be driven off-road but not
on public roads. The EXC models are designed for off-road sports endurance competitions(enduro) and
not suitable for predominant motocross use.
ENGLISH
2
2-STROKE OFFROAD MOTORCYCLES ON PUBLIC ROADS
KTM EXC models were designed for offroad use only and are only suitable for longer rides on public roads
to a certain extent. The engine is subjected to completely different performance demands on public roads
and must be adapted to these operating conditions.
Ask your KTM dealer for more information.
OWNER’S MANUAL
Please read this manual carefully and completely before going on your first ride. It contains a great deal
of information and advice which will help you use and handle your bike properly. Only by doing so will
you learn how to tune your motorbike to your specific needs and how to protect yourself against injury.
Besides, this manual contains important information on motorcycle maintenance.
In your own interest, please pay particular attention to notices that are marked as follows:
– Ignoring these instructions can be dangerous to life and limb!
– ignoring these instructions may damage parts of the motorcycle or impair the motorcycle’s traffic safety!
At the time this manual was typeset, it was up-to-date with the latest state of this production series. It
cannot be completely ruled out, however, that minor discrepancies may exist resulting from further design
upgrades of these motorcycles.This manual is an important part of your motorbike and should be passed
on to any subsequent owner in case you decide to sell it.
SERVICE
Observance of the service, maintenance and tuning instructions for the engine and chassis specified in
the Owner's Manual is a prerequisite for faultless operation and the avoidance of premature wear. An
improperly tuned chassis can lead to damage and breakage of the chassis components (see chapter on
checking the basic chassis setting).
The use of the motorcycle under extreme conditions, e.g. on extremely muddy and wet terrain, can lead
to higher than average wear on components such as the drive train or the brakes. In this case it may
become necessary to service or replace wear parts before the service limit specified in the maintenance
schedule has been reached.
IMPORTANT
»
WARRANTY
The service work specified in the "Lubrication and Maintenance Schedule" must be performed by a KTM
workshop and recorded in the service manual otherwise claims under the warranty shall become void.
No claims can be filed under the warranty for damage or consequential damage caused by manipulations
or conversions to the motorcycle.
AUTOMOTIVE FLUIDS
The fuels and lubricants specified in the Owner's Manual or automotive fluids with equivalent specifications must be used in accordance with the maintenance schedule.
SPARE PARTS, ACCESSORIES
For your own safety, use KTM-approved parts and accessories only. KTM is not liable for damage that
arises in connection with the use of other products.
TRANSPORT
When transporting your motorcycle, secure it with elastic straps or other mechanical devices in an upright
position. Be sure that the fuel tap is closed. If the motorcycle topples over, fuel can flow out of the carburetor or fuel tank
ENVIRONMENT
Offroad-Motorcycle driving is a wonderful sport and we hope that you will be able to enjoy it to the full.
It may, however, involve potential problems for the environment or lead to conflicts with others. These
problems or conflicts can be avoided if the motorcycle is used responsibly. To safeguard the future of
motorcycle sports, make sure that you use the motorcycle in accordance with the law, show that you are
environmentally conscious and respect the rights of others.
Enjoy driving your motorcycle !
KTM-SPORTMOTORCYCLE AG
5230 MATTIGHOFEN, AUSTRIA
Attachments: Spare parts manual chassis & engine
ENGLISH
The service work specified in the "Lubrication and Maintenance Schedule" must be performed by a KTM
workshop and recorded in the service manual otherwise claims under the warranty shall become void. The
fuels and lubricants specified in the Owner's Manual or automotive fluids with equivalent specifications
must be used in accordance with the maintenance schedule.
Take special care to follow the recommended run in, inspection, and maintenance intervals. Heeding
these guidelines will significantly increase the life of your motorcycle.
3
TABLE OF CONTENTS »
ENGLISH
4
Page
SERIAL NUMBER LOCATIONS . . . . . . . . . . . . . . . . . . . . . .5
Chassis number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Engine number, engine type . . . . . . . . . . . . . . . . . . . . . .5
OPERATION INSTRUMENTS . . . . . . . . . . . . . . . . . . . . . . . .5
Clutch lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Hand brake lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Electronic speedometer . . . . . . . . . . . . . . . . . . . . . . . . . .6
Indicator lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Combination switch . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Flasher switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Filler cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Fuel tap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Choke lever on the handlebar . . . . . . . . . . . . . . . . . . . . .12
Shift lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Kickstarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Foot brake pedal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Side stand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Steering lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Compression damping of fork . . . . . . . . . . . . . . . . . . . .14
Rebound damping of fork . . . . . . . . . . . . . . . . . . . . . . .14
Spring preload of the fork . . . . . . . . . . . . . . . . . . . . . . .14
Compression damping of shock absorber . . . . . . . . . . . . .15
Rebound damping of shock absorber . . . . . . . . . . . . . . .15
GENERAL TIPS AND WARNINGS FOR STARTING
THE MOTORCYCLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Instructions for your first ride . . . . . . . . . . . . . . . . . . . .16
Running in . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
DRIVING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . .17
What you should check before each start . . . . . . . . . . . . . . .17
Starting when the engine is cold . . . . . . . . . . . . . . . . . . . . .18
Starting when the engine is warm . . . . . . . . . . . . . . . . . . . .18
What to do when the engine is „flooded“ . . . . . . . . . . . . . . .18
Starting off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Shifting/Riding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Stopping and parking . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Refueling, fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
PERIODIC MAINTENANCE SCHEDULE . . . . . . . . . . . . . . . . . .20
MAINTENANCE WORK ON CHASSIS AND ENGINE . . . . . . . . .22
Changing the spring preloading of the shock absorber . . . . . .22
Pivot bearing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Basic suspension setup for the weight of the driver . . . . . . .23
Checking the basic setup of the telescopic fork . . . . . . . . . .24
Changing the spring preload on the telescopic fork . . . . . . .24
Breather plug front fork . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Cleaning the dust sleeves of the telescopic fork . . . . . . . . . .24
Checking and adjusting the steering head bearing . . . . . . . .25
How to change the handlebar position . . . . . . . . . . . . . . . . .25
Adapting the chain guide to the number
of rear sprocket teeth . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Check chain tension . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Correct chain tension . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Chain maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Chain wear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
General information about KTM disc brakes . . . . . . . . . . . . .28
Changing the basic position of the hand brake lever . . . . . .29
Checking the brake fluid level - front brake . . . . . . . . . . . . .29
Refilling the front brake fluid reservoir . . . . . . . . . . . . . . . .29
Checking the front brake pads . . . . . . . . . . . . . . . . . . . . . .29
Replacing the front brake pads . . . . . . . . . . . . . . . . . . . . . .30
Checking the rear brake fluid level . . . . . . . . . . . . . . . . . . .30
Page
Refilling the rear brake fluid reservoir . . . . . . . . . . . . . . . . .30
Changing the basic position of the foot brake pedal . . . . . . .31
Checking the rear brake pads . . . . . . . . . . . . . . . . . . . . . . .31
Replacing the rear brake pads . . . . . . . . . . . . . . . . . . . . . .31
Dismounting and mounting the front wheel . . . . . . . . . . . . .32
Dismounting and mounting the rear wheel . . . . . . . . . . . . . .33
Tires, air pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Checking spoke tension . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Replacing the battery of the digital speedometer . . . . . . . . .34
Replacing the headlight lamp/parking light lamp . . . . . . . . .34
Cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Checking the coolant level . . . . . . . . . . . . . . . . . . . . . . . . .37
Bleeding the cooling system . . . . . . . . . . . . . . . . . . . . . . . .37
Cleaning the air filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Exhaust system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Changing the original position of the clutch lever . . . . . . . . .38
Checking the oil level of the hydraulic clutch . . . . . . . . . . . .38
Bleeding the hydraulic clutch . . . . . . . . . . . . . . . . . . . . . .39
Carburetor adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Draining the float chamber of the carburetor . . . . . . . . . . . .41
Checking the float level . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Adjusting the engine characteristic via the ignition curve . . .41
Check transmission oil level . . . . . . . . . . . . . . . . . . . . . . .42
Changing the transmission oil . . . . . . . . . . . . . . . . . . . . . . .42
CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
CONSERVATION FOR WINTER OPERATION . . . . . . . . . . . . . . .43
STORAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
USE AFTER A PERIOD OF STORAGE . . . . . . . . . . . . . . . . . . .43
TECHNICAL SPECIFICATIONS – CHASSIS 125 EXC 2010 . . .44
TECHNICAL SPECIFICATIONS – ENGINE 125 EXC 2010 . . .46
WIRING DIAGRAMM . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
CARBURETOR TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
SERIAL NUMBER LOCATIONS »
Chassis number
The chassis number is stamped on the right side of the steering head tube.
Enter this number in the field on page no 1.
The engine number and the engine type are stamped into the left side of the
engine below the engine sprocket. Enter this number on page 1.
ENGLISH
Engine number, engine type
5
OPERATION INSTRUMENTS »
Clutch lever
The clutch lever [1] is located on the left side of the handlebars. The adjusting screw [A] is used to change the original position of the clutch lever (see
maintenance work on chassis and engine).
The clutch is hydraulically actuated and adjusts itself automatically.
A
1
Hand brake lever
The hand brake lever [2] is mounted on the handlebars on the right and actuates the front wheel brake. The adjusting screw [B] can be used to change
the basic position of the hand brake lever (see maintenance work on chassis
and engine).
2
B
OPERATION INSTRUMENTS »
Electronic speedometer
The display in the electronic speedometer is activated as soon as you press
a button on the speedometer or an impulse is received from the wheel sensor. The display lights up when the engine is running.
The display is cleared if no button is pressed for 1 minute or no impulse is
received from the wheel sensor.
The | button is used to change between display modes.
The + and – buttons are used to control various functions.
TEST
All of the display segments briefly light up for the display function test.
ENGLISH
6
WS (wheel size)
The display changes and the circumference of the front wheel is briefly displayed in millimeters (2205 mm corresponds to a front wheel circumference
of 21" with production tires).
Afterwards the display will return to the previous display mode.
SPEED display mode / H (service hours)
Only the SPEED / H and SPEED / ODO display modes are activated in the
condition at delivery. SPEED/H is displayed whenever the display is activated
and the front wheel is not turning. It automatically changes to the SPEED/ODO
display mode as soon as the front wheel starts turning.
SPEED displays the speed.
H displays the engine's service hours. The service hour counter starts to count
as soon as you start the engine. The displayed figure cannot be changed.
Service intervals are indicated in service hours for some KTM offroad motorcycles, making the service hour counter a very practical function.
SPEED / ODO display mode (odometer)
The SPEED/ODO mode displays the speed and the total distance traveled.
The display automatically changes to the SPEED/H display mode when the
front wheel stops turning.
+ button
– button
briefly press | button
hold | button 3 secs.
no function
no function
changes to the next display mode
changes to the next display mode
The electronic speedometer has a number of display modes (functions) that
you can also activate (reveal) (see: Activating and deactivating display modes).
OPERATION INSTRUMENTS »
Activating and deactivating display modes
In the display mode SPEED/H, press and hold the | button for 3 seconds to
access the SETUP menu. The active functions will be displayed. The blinking function can be activated by pressing the + button and deactivated by
pressing the – button.
Press and hold the | button 3 seconds to store the settings.
If no button is pressed for 20 seconds, the setting will be stored automatically and the display will return to the SPEED/H mode.
hold | button 3 secs.
activates the blinking display
deactivates the blinking display
changes to the next display without changing any
settings
starts the SETUP
stores the settings and changes to the SPEED/H
mode
The following display modes can be activated:
TR1
tripmaster 1
TR2
tripmaster 2
A1
average speed 1
A2
average speed 2
S1
stop watch 1
S2
stop watch 2
CLK
clock
LAP
lap time
KMH/MPH
display in kilometers or miles (see: Kilometers or miles)
If you have activated all of the display modes, they will be displayed in the
following order:
SPEED/H, SPEED/CLK, SPEED/LAP, LAP/LAP, SPEED/ODO, SPEED/TR1,
SPEED/TR2, SPEED/A1, SPEED/A2, SPEED/S1, SPEED/S2
SPEED / CLK (time) display mode
CLK displays the time in hours, minutes and seconds.
+ button
– button
briefly press | button
hold | button 3 secs.
no function
no function
changes to the next display mode
set the clock menu
To set the clock, see „Setting the clock“.
SPEED / LAP (lap time) display mode
You can use the manual stop watch to stop and store up to 10 lap times,
which you can view in the LAP/LAP display mode (see below).
LAP displays the lap times in hours, minutes and seconds.
+ button
– button
briefly press | button
hold | button 3 secs.
Starts and stops the stop watch, lap time is not
reset to 0
Stops the stop watch, stores the lap time and restarts
the stop watch again. The time is reset to 0. A total
of 10 lap times can be stored. If the lap time continues to run after you press the - button, all 10 memory locations are occupied.To clear all of the stored
lap times, hold the | button for 3 seconds in the
SPEED/LAP mode.Up to 10 lap times can be stored
in this way.
Changes to the next display mode.If no lap time is
stored or the motorcycle is driving, the LAP/LAP
mode will be skipped.
Clears all LAP figures
ENGLISH
+ button
– button
briefly press | button
7
OPERATION INSTRUMENTS »
LAP / LAP display mode (to view lap times)
The LAP/LAP display mode will only be shown if lap times have been stored
and the front wheel has stopped. It will display the lap number and the
stopped lap time in hours, minutes and seconds. Press the + button to access
the next lap time.
To clear all of the stored lap times, hold the | button for 3 seconds in the
SPEED/LAP mode.
+ button
– button
briefly press | button
hold | button 3 secs.
changes to the next lap time
no function
changes to the next display mode
changes to the next display mode
SPEED / TR1 display mode (tripmaster 1)
ENGLISH
8
The TR1 tripmaster is always active and counts to 999.9. It is used to measure the length of a trip or the distance between 2 refueling stops.
TR1 is linked to A1 (average speed 1). The calculation of these figures is activated by the first impulse received from the wheel sensor (when the front wheel
starts to turn) and stops 3 seconds after the last impulse is received (when
the front wheel has stopped).
The TR1, A1 and S1 figures are automatically cleared after passing 999.9.
+ button
– button
briefly press | button
hold | button 3 secs.
no function
no function
changes to the next display mode
clears the TR1, S1, A1 figures
SPEED / TR2 display mode (tripmaster 2)
The tripmaster 2 is always active and counts to 999.9. Contrary to TR1, the
displayed figure can be changed using the + and – buttons. This is a very useful function for trips taken according to a roadbook.
+ button
– button
briefly press | button
hold | button 3 secs.
increases the TR2 figure
decreases the TR2 figure
changes to the next display mode
clears the TR2 figure
SPEED / A1 display mode (average speed 1)
A1 shows the average speed based on the TR1 (tripmaster 1) and S1 (stop
watch 1) figures. The calculation of this figure is activated by the first impulse
received from the wheel sensor and stops 3 seconds after the last impulse is
received.
+ button
– button
briefly press | button
hold | button 3 secs.
no function
no function
changes to the next display mode
clears the TR1, S1, A1 figures
SPEED / A2 display mode (average speed 2)
A2 shows the average speed based on the TR2 (tripmaster 2) and S2 (stop
watch 2) figures.
The displayed figure can deviate from the actual average speed if the TR2
figure was changed manually or if S2 was not stopped after the trip.
+ button
– button
briefly press | button
hold | button 3 secs.
no function
no function
changes to the next display mode
changes to the next display mode
OPERATION INSTRUMENTS »
SPEED / S1 display mode (stop watch 1)
S1 shows the traveling time based on TR1 and continues to run whenever it
receives impulses from the wheel sensor. The calculation of this figure is activated by the first impulse received from the wheel sensor and stops 3 seconds after the last impulse is received.
+ button
– button
briefly press | button
hold | button 3 secs.
no function
no function
changes to the next display mode
clears the TR1, S1, A1 figures
S2 is a manual stop watch. Start the stop watch by pressing the + button,
press again to hold. Press again to continue timing.
Press the | button to change to the next mode. The S2 display will blink in
the other modes if S2 continues to run in the background. To stop S2, return
to the SPEED/S2 mode and press the + button.
+ button
– button
briefly press | button
hold | button 3 secs.
starts and stops the stop watch
no function
changes to the next display mode
clears the S2 figure
ENGLISH
SPEED / S2 display mode (stop watch 2)
9
Kilometers or miles
The unit (kilometers or miles) can also be changed. The ODO figure will be
retained and converted accordingly. The TR1, A1, S1, TR2 and A2 figures
will be cleared.
To select the unit, select the SPEED/H mode and hold the | button for 3 seconds to access the SETUP menu. Press the | button until the KMH/MPH
function blinks. Press the + button briefly to move to the options. Press the
+ button for KMH or the – button for MPH.
To set, briefly press the | button 1 x and hold for 3 seconds until the display returns to the SPEED/H mode.
If no button is pressed for 20 seconds, the setting will be stored automatically and the display will return to the SPEED/H mode.
+ button
– button
briefly press | button
hold | button 3 secs.
to access the menu
to activate the KMH display
to activate the MPH display
changes to the next mode
changes from the menu to the SETUP menu
stores and closes the SETUP menu
Setting the clock
To set the clock, switch the ignition off and select the SPEED/CLK mode. Press
and hold the | button for 3 seconds. The blinking digits can be changed
using the + and – buttons. Press the | button to move to the next digit. 012 will show the time in the 12-hour mode, 0-24 in the 24-hour mode.
Press and hold the | button for 3 seconds to store the settings.
If no button is pressed for 20 seconds, the settings will be stored automatically and the display will return to the SPEED/CLK mode.
+ button
– button
briefly press | button
hold | button 3 secs.
time +
time –
changes to the next digit
starts the SETUP menu
stores the time and changes to the SPEED/CLK display mode
Motorcycle is driving
Motorcycle is standing
OPERATION INSTRUMENTS »
X
OVERVIEW OF THE ELECTRONIC SPEEDOMETER FUNCTIONS
display
briefly press + button
briefly press – button
briefly press | button
hold | button 3 secs.
SPEED / H
no function
no function
next display mode
displays the SETUP menu
X
X
SPEED / CLK
no function
no function
next display mode
setting the clock menu
X
X
SPEED / LAP
starts/stops LAP without
clearing LAP figure
stops LAP, stores LAP
figure, resets LAP to 0
next display mode
clears all LAP figures
LAP / LAP
next figure
no function
next display mode
next display mode
X
SPEED / ODO
no function
no function
next display mode
next display mode
X
X
SPEED / TR1
no function
no function
next display mode
clears TR1, S1, A1
X
X
SPEED / TR2
increases the TR2 figure
reduces the TR2 figure
next display mode
clears TR2
X
X
SPEED / A1
no function
no function
next display mode
clears TR1, S1, A1
X
X
SPEED / A2
no function
no function
next display mode
next display mode
X
X
SPEED / S1
no function
no function
next display mode
clears TR1, S1, A1
X
X
SPEED / S2
starts - stops S2
no function
next display mode
clears S2
X
ENGLISH
10
If the CLK, LAP, TR1, TR2 A1, A2, S1 and S2 figures are suddenly cleared, the battery in the electronic speedometer is empty and
must be replaced (see: Replacing the battery in the electronic speedometer).
A tripmaster switch is available as an accessory that lets you control the electronic speedometer functions from the handlebar.
OPERATION INSTRUMENTS »
Indicator lamps
The green control lamp [1] flashes in the same rhythm as the
flashing indicator when the indicator is working.
1
3
The blue control lamp [2] lights up when the high beam is on.
2
Combination switch
The light switch has 2, respectively 3 switch positions.
[A] = Light off (this function is not available in all models)
[B] = Low beam on
[C] = High beam on
You may use button [2] to actuate the horn.
The red short circuit button [3] serves to switch off the engine. Leave the
switch pressed until the engine stops.
A
ENGLISH
2
B
11
C
Flasher switch
The flasher switch is a separate unit and is mounted on the left portion of the
handlebar.
The wire harness is designed in a way that whenever you want to use your
bike off-road, you can dismount the entire turn indicator system without
affecting the function of the remaining electrical system.
Flasher left
Flasher right
OPERATION INSTRUMENTS »
Filler cap
To open it:
4
To close it:
3
Press the release button [3] and turn the tank cap in a counterclockwise direction.
Put the tank cap back on and turn in a clockwise direction until
the release button snaps into place.
Install tank breather hose [4] without kinks.
Fuel tap
OFF
ON
RES
ENGLISH
OFF In this position the fuel tap is closed. No fuel can flow to the carburetor.
ON During operation the twist grip must be turned to ON. This means that
the fuel can flow to the carburetor. With the twist grip in this position
the tank will be emptied until only the reserve is left.
RES The reserve tank cannot be tapped until the rotating handle is turned
to the RES position. Fill the tank as soon as possible and remember to
turn the rotating handle back to the ON position so that you will have
backup fuel next time, too.
12
Choke lever on the handlebar
5
When you press the choke lever [5], a hole in the carburetor is opened through
which the engine can take in additional fuel. The result is a "rich" fuel-air
mixture of the type needed for cold starts.
Press the choke lever all the way up to close the hole in the carburetor again.
OPERATION INSTRUMENTS »
Shift lever
The shift lever is mounted on the left side of the engine. The position of the
gears is shown in the illustration. Neutral, or the idle speed, is located between
first and second gear.
2,3,4,5, (6)
N
1
The kickstarter is mounted on the left side of the engine. Its upper part can
be swivelled.
ENGLISH
Kickstarter
13
Foot brake pedal
The foot brake pedal is disposed in front of the right foot rest. Its basic position can be adjusted to your seat position (see maintenance work).
Side stand
Push the side stand to the ground with your foot and load it with the motorcycle. Make sure that you put your bike on solid ground and in a secure position. For off-road riding, you can use the rubber band [1] to additionally secure
the center stand in its folded-up position.
1
Steering lock
The handlebar can be locked by means of the lock located on the steering
head. To lock it, turn the handlebar all the way to the right, insert the key,
turn it to the left, press it in, turn it to teh right, and remove it.
Never leave the key inserted in the steering lock. If you turn the handlebar to
the left the key could get damaged.
OPERATION INSTRUMENTS »
Compression damping of fork
Hydraulic compression damping determines the reaction when the fork is compressed. The degree of compression can be adjusted with adjusting
screws at the bottom of the fork legs.Remove the protecting cap [4].
Turn the screw [5] clockwise to increase damping, turn it counterclockwise
to reduce damping during compression.
5
STANDARD ADJUSTMENT:
– turn adjusting screw clockwise as far as it will go
– turn it back by as many clicks as are specified for the relevant type of fork
Typ WP Suspension 14187E02 . . . . .22 clicks
5
4
Rebound damping of fork
ENGLISH
6
Hydraulic rebound damping determines the reaction when the fork is
rebound.
By turning the adjusting screw [6], the degree of damping of the rebound can
be adjusted. Turn the knob clockwise to increase damping, turn it counterclockwise to reduce damping during rebounding.
6
STANDARD ADJUSTMENT:
– turn adjusting screw clockwise as far as it will go
– turn it back by as many clicks as are specified for the relevant type of fork
Typ WP Suspension 14187E02 . . . . .22 clicks
14
Spring preload of the fork
The fork's preload can be adjusted by means of the adjusting screws [7]. Use
a 24 mm fork wrench. More information is provided in the chapter "Adjusting
the fork and shock absorber.“
7
OPERATION INSTRUMENTS »
Compression damping of shock absorber
STANDARD LOW-SPEED SETTING:
– Turn the adjusting screw [1] to the limit in a clockwise direction using a
screwdriver .
– Unscrew the respective number of clicks for the specific type of shock
absorber in a counterclockwise direction.
Typ WP Suspension 12187E02 . . . . .15 clicks
2
The damping unit of the shock absorber is filled with high-compression nitrogen. Never try to take the shock absorber apart or to do any maintenance work
yourself. Severe injuries could be the result.
Never unscrew the black screw [2] connection (24mm).
1
ENGLISH
The low-speed and high-speed compression damping can be adjusted separately on the shock absorber (Dual Compression Control).
Low and high speed refers to the movement of the shock absorber during compression and not to the speed of the motorcycle.
The low and high-speed technology overlaps.
The low-speed setting is primarily for slow to normal shock absorber
compression rates.The high-speed setting is effective at fast compression rates.
Turning in a clockwise direction will increase the damping, turning counterclockwise will decrease the damping.
15
STANDARD HIGH-SPEED SETTING:
– Turn the adjusting screw [3] to the limit in a counterclockwise direction
using a box wrench.
– Unscrew the respective number of turns for the specific type of shock absorber
in a clockwise direction.
3
Typ WP Suspension 12187E02 . . . . .1,5 turn
Rebound damping of shock absorber
By using the adjusting screw [4], the degree of damping of the rebound can
be adjusted. Turn the knob to the right side to increase damping, turn it to
the left side to reduce damping during rebounding.
4
5
STANDARD ADJUSTMENT:
– Turn the adjusting screw clockwise to the stop.
– Then turn the adjusting screw counterclockwise, counting the number of
clicks that corresponds to the respective type of shock absorber.
Typ WP Suspension 12187E02 . . . . .24 clicks
The damping unit of the shock absorber is filled with high-compression nitrogen. Never try to take the shock absorber apart or to do any maintenance work
yourself. Severe injuries could be the result.
Never unscrew the black screw [5] connection (15mm).
GENERAL TIPS AND WARNINGS FOR STARTING THE MOTORCYCLE »
Instructions for your first ride
ENGLISH
16
– Make sure the work for the "pre-delivery inspection" was performed by your authorized KTM workshop. The DELIVERY CERTIFICATE and SERVICE MANUAL will be handed over when you
pick up your vehicle.
– Thoroughly read the whole instruction manual before starting
for your first tour.
– Familiarize yourself with the controls.
– Adjust the clutch lever, the hand brake lever and the foot brake
pedal to the most comfortable position.
– Get used to handling the motorcycle on an empty parking lot
or open space, before going for a longer ride. Also try to ride
as slowly as possible while standing upright, to improve your
feeling for the vehicle.
– Do not drive along off-road trails which go beyond your ability
and experience.
– Hold the handlebar with both hands and leave your feet on the
foot rests while driving.
– Remove your foot from the foot brake lever when you are not
braking. If the foot brake lever is not released the brake pads
rub continuously and the braking system is overheated.
– Do not make any alterations to the motorcycle and always use
ORIGINAL KTM SPARE PARTS. Spare parts from other manufacturers can impair the safety of the motorcycle.
– Motorcycles are sensitive to alterations in the distribution of
weight. If you are taking luggage with you, it should be secured
as close as possible to the middle of the vehicle; distribute the
weight evenly between the front and the rear wheel. Never
exceed the maximum permissible laden weight and the axle
weights. The maximum permissible laden weight is made up
of the following components:
- Motorcycle ready for operation and tank full
- Luggage
- Driver with protective clothing and helmet.
– Pay attention to running-in procedure.
Running in
Even very precisely machined sections of engine components have
rougher surfaces than components which have been sliding across
one another for quite some time. Therefore, every engine needs to
be broken in. For this reason, during its first 500 kilometers (300
miles) or 5 hours the engine must not be revved up to its performance limits.
Apply low but changing loads for running-in.
Do not drive at full load for the first 500 kilometers (300 miles)
or 5 hours!
– Wear suitable clothing when driving a motorcycle. smart KTM
drivers always wear a helmet, boots, gloves, and a jacket,
regardless of whether driving all day or just go for a short ride.
The protective clothing should be brightly colored so that other
users of the roads can see you as early as possible. Of course
your passenger will also need suitable protective clothing.
– Always turn on the light to make sure that other drivers become
aware of you as early as possible.
– Do not drive after having consumed alcohol.
– Only use accessory parts recommended by KTM. For example,
front panelling can impair the driving characteristics of the motorcycle. Cases, extra tanks etc. can alter the weight distribution
and thus also impair the vehicle’s driving characteristics.
– The front and rear wheel are allowed to be fitted only with tires
that have the same profile type.
– Be sure to check the spoke tension after 30 minutes' running time.
The spoke tension will decrease quickly on new wheels. If you continue to drive with loose spokes, the spokes may crack and lead
to unstable handling (see "Checking the spoke tension").
– Observe the traffic regulations, drive defensively and try to look
ahead as far as possible so that you recognize any hazards as
early as possible.
– Adjust your driving speed to the conditions and your driving skills.
– Drive carefully on unknown roads or in unknown territory.
– When driving off-road, always have a friend on a second motorcycle to keep you company, so that you can help each other
should difficulties arise.
– Replace the helmet visor or goggle glasses early enough. When
light shines directly on a scratched visor or goggles, you will
be practically blind.
– Never leave your motorcycle without supervision as long as the
engine is running.
– The Above Models were designed and built for one person only
- no additional passenger allowed!
– Neither do these models meet the applicable statutory regulations and safety standards. Using them on public roads, highways, freeways, etc. is against the law.
– When riding your motorcycle, please bear in mind that other
people may feel molested by excessive noise.
DRIVING INSTRUCTIONS »
What you should check before each start
When you start off, the motorcycle must be in a perfect technical condition.
For safety reasons, you should make it a habit to perform an overall check of
your motorcycle before each start.
The following checks should be performed:
1 CHECK TRANSMISSION OIL LEVEL
Too little transmission oil leads to premature wear and will ultimately destroy
gear wheels and parts of the shift mechanism.
2 FUEL
Check that there is sufficient fuel in the tank; when closing the filler cap,
check that the tank venting hose is free of kinks.
4 TIRES
Check for damaged tires. Tires showing cuts or dents must be replaced.
The tread depth must comply with the legal regulations. Also check the
air pressure. Insufficient tread and incorrect air pressure deteriorate the
driving performance.
5 BRAKES
Check correct functioning of the braking system. Verify that there is sufficient brake fluid in the reservoir. The reservoirs have been designed in
such a way that brake fluid does not need to be refilled even when the
brake pads are worn. If the level of brake fluid falls below the minimum
value, this indicates a leak in the braking system or completely worn out
brake pads. Arrange for the braking system to be checked by an authorized KTM dealer, as complete failure of the braking system can be expected.
Also check the state of the brake hose and the thickness of the brake
linings.
Check free travel of the hand brake lever and foot brake lever.
If the resistance in the hand brake lever or foot brake pedal feels „spongy“
(too much give), this is an indication that something is wrong with the brake
system. Don’t ride your motorcycle anymore without first having the brake system looked over by a KTM dealer.
6 CABLES
Check correct adjustment and easy running of all control cables.
7 COOLING FLUID
Check the level of cooling fluid when the engine is cold.
8 ELECTRICAL SYSTEM
Check correct functioning of headlamps, tail-lights, brake lights, turn
indicators, indicator lamps and horn while the engine is running.
9 LUGGAGE
If you are taking luggage with you, check that it is securely fastened.
ENGLISH
3 CHAIN
A loose chain was fall off the chain wheels; an extremely worn chain may
tear, and insufficient lubrication may result in unnecessary wear of the
chain and chain wheels.
17
DRIVING INSTRUCTIONS »
Starting when the engine is cold
1
2
3
4
5
6
ENGLISH
18
Open fuel tap
Turn on emergency OFF switch
Swing up the side stand
Put the gear in neutral
Activate cold-starting aid (choke)
Do not open the throttle at all or open it no more than 1/3 of the way.
While doing so, depress the kickstarter vigorously all the way down.
– For starting always put on your motorcycle boots to avoid injuries. You could
slip off the kickstarter or the motor could kick back and fling your foot
upwards.
– Forcefully kick the kickstarter down the whole way and do not open the
throttle. A kickstart with too little momentum and an opened throttle
increases the kicking back risk.
– Check for power transmission at temperatures below 0°C (32°F) before
you actuate the kickstarter. If you depress the kickstarter without feeling
any resistance, power is not being transmitted. This could cause injuries.
– Do not start the engine and allow it to idle in a closed area. Exhaust fumes
are poisonous and can cause loss of consciousness and death. Always provide adequate ventilation while the engine is running.
– Do not ride your motorcycle with full load and do not rev up the engine
when cold. Since the piston warms up and expands faster than the water
cooled cylinder, this might cause engine damage. Always let engine idle
until warm or drive it warm at low r.p.m. speeds.
NOTE:
The highly inflammable components in modern fuels volatilize if left standing for longer periods of time. If the motorcycle has not been used for over
1 week, the fuel should be drained from the float chamber. The engine will
start up immediately if the float chamber is filled with fresh, ignitable fuel.
Starting when the engine is warm
1
2
3
4
5
Open fuel tap
Turn on emergency OFF switch
Swing up the side stand
Put the gear in neutral
Open the throttle approx. ½ of the way. While doing so, depress the kickstarter vigorously all the way down.
What to do when the engine is „flooded“
1 Close fuel tap
2 Start engine with full throttle. If necessary, unscrew spark plug and dry it.
3 Open the throttle approx. ½ of the way. While doing so, depress the kickstarter vigorously all the way down.
Starting off
Pull the clutch lever. Put the engine into first gear, slowly release the clutch
lever and accelerate at the same time.
– Before you start off, check that the main or side stand has been swung
right up to the top. If the stand drags on the floor, you may lose control
of your motorcycle.
– Before starting for an off-road tour, it is recommended to additionally secure
the side stand with the rubber band on the air filter box.
DRIVING INSTRUCTIONS »
Shifting/Riding
– After falling with the motorcycle, check all its functions thoroughly before using it again.
– A twisted handlebar must always be replaced. Do not adjust
the handlebar, it will lose stability.
– High rpm rates when the engine is cold have an adverse effect
on the life of your engine. We recommend you run the engine
in a moderate rpm range for a few miles giving it a chance to
warm up. After that no further precautions in this respect need
to be taken.
– Never have the throttle wide open when changing down to a
lower gear. The engine will overrev, damaging the valves. In addition, the rear wheel will block so that the motorcycle can easily get out of control.
– If the engine runs without throttle during longer downhill travel,
the engine should be accelerated occasionally to ensure that
it is supplied with sufficient lubricant which is mixed in the
fuel.
– In the event that, while riding on your motorcycle, you notice
any unusual operation-related noise, stop immediately, turn the
engine off, and contact an authorized KTM dealer.
Braking
Close the throttle and apply the hand and foot brake simultaneously. Be especially careful when you apply the brakes on sandy,
wet or slick surfaces. Always apply the brakes intuitively, locked
wheels can cause the bike to skid or crash. Shift down to a lower
gear to match your speed. Always apply the brakes before you enter
a curve.
– In case of rain, after washing the motorcycle, after rides through
water and in case of rides on wet off-road tracks, humid or dirty
brake discs can delay the braking effect. The brakes must be
pulled until they are dry or clean.
– Rides on salt-strewed or dirty roads can also delay the
braking effect. The brakes must be pulled until they are clean.
– Dirty brake discs cause increased tear of brake pads and brake
discs.
– When you brake, the brake discs, brake pads, brake caliper and
brake fluid heat up. The hotter these parts get, the weaker the
breaking effect. In extreme cases, the entire braking system
can fail.
– If the resistance in the hand brake lever or foot brake pedal
feels “spongy” (too much give), this is an indication that something is wrong with the brake system. Don’t ride your motorcycle anymore without first having the brake system looked over
by a KTM dealer.
Stopping and parking
Apply the brakes fully and put the engine into neutral. To turn off
the engine, push the short-circuit button or the emergency-OFF
button with the engine at idling speed until the engine stops. Turn
the fuel tap to the OFF position, park on an area where the ground
is firm, and lock the motorcycle.
Motorcycle engines produce a great amount of heat while running.
The engine, exhaust pipe, muffler, brake rotors, and shock absorbers
can become very hot. Do not touch any of these parts after starting the motorcycle, and take care to park it where pedestrians are
not likely to touch it and get burned.
– Close the fuel tap when leaving your vehicle. Otherwise the carburetor may get flooded and fuel will enter the engine.
– Never park your motorcycle in places where there exist fire hazards due to dry grass or other easily flammable materials.
– The side stand is only designed for the weight of the motorcycle. If you get on your motorcycle and thus put additional
weight on the motorcycle, the side stand or the frame can be
damaged or the motorcycle may fall on the side.
Refueling, fuel
Unleaded premium gasoline RON 95 mixed with high grade two
stroke oil. Mixture ratio 1:60
Fuel and engine oil should only be mixed immediately before use.
KTM recommends Motorex Cross Power 2T.
– Gasoline is highly flammable and poisonous. Extreme caution
should be used when handling gasoline. Do not refuel the
motorcycle near open flames or burning cigarettes. Always
switch off the engine before refueling. Be careful not to spill
gasoline on the engine or exhaust pipe while the engine is hot.
Wipe up spills promptly. If gasoline is swallowed or splashed
in the eyes, seek a doctor’s advice immediately.
– The tank cap's locking mechanism always has to snap into place
when it is mounted.
– Only use premium-grade gasoline ROZ 98 respectively 95
mixed with high-grade two-stroke engine oil. Other types of gasoline can cause engine failure.
– Do not use premixed two-stroke oils, oils for outboard engines
or normal engine oil to prepare the mixture.
– Do not use gasoline and oil mixtures that are older than one
week. The lubrication properties of some two-stroke oils can
deteriorate very rapidly.
– Only use known brands of high-grade 2-stroke engine oil (i.e.
Motorex Cross Power 2T).
– Never mix synthetic oils and mineral oils.
– Not enough oil or low-grade oil can cause erosion of the piston. when Using too much oil, the engine may start smoking
and foul the spark plug.
– If your motorcycle is equipped with a catalytic converter, always
keep in mind that leaded fuel will destroy the catalytic converter.
– Fuel expands when its temperature rises. Therefore do not fill
the tank to the top. (see fig.)
35 mm
ENGLISH
You are now in first gear, referred to as the drive or uphill gear.
Depending on the conditions (hill size, etc.), you can shift to a higher
gear. Turn down the throttle, at the same time pull the clutch lever
in and shift to the next higher gear. Let the clutch lever go again
and open the throttle. If you turned on the choke, make sure you
turn it off again as soon as engine is warm.
When you reach full speed through opening the throttle all the way,
turn throttle back to 3/4; the speed hardly decreases although the
engine will use less gas. Only give as much gas as the engine can
handle. Through quick and high revving of throttle, the gas consumption will increase. When shifting down, use the brakes if necessary and turn down at the same time. Pull the clutch lever and
shift down to the next lower gear. Let the clutch lever go slowly
and open the throttle or shift down again.
19
ENGINE
CARBURETOR
ADD-ON-PARTS
at least once
a year
z
z
z
z
Check spark plugs, adjust distance between electrodes
z
Renew spark plugs
z
Clean the spark-plug connector and check for a tight fit
z
z
z
z
Check the screws on the kick starter and shift lever for a tight fit
z
z
z
Check the carburetor connection boot and intake flange for cracks or leaks
z
Check idle speed setting
z
Check that vent hoses are not damaged or bent
Check cooling system for leaks, check quantity of antifreeze
Check exhaust system for leaks and fitment
z
Check cables for damage, smooth operation, bends; adjust and lubricate
z
z
Check the fluid level in the master cylinder of the hydraulic clutch
z
z
z
z
Clean air filter and filter box
z
z
z
z
Check electric wires for damage and bends
z
z
Check headlamp setting
z
z
Check function of electric systems (low beam, high beam, break light, indicator,
z
z
z
Check brake fluid level, lining thickness, brake lining
z
z
z
Check brake lines for damage and leaks
z
z
z
Check/adjust the function, smooth operation and free travel of the hand/foot brake lever
z
z
z
Check the screws and guide bolts on the brake system for a tight fit
z
z
Check shock absorber and fork for leaks and function
z
z
Clean dust bellows
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
CHASSIS
BRAKES
indicator lamps, speedometer illumination, horn, emergency OFF switch or button
z
z
z
z
z
z
Bleed fork legs
z
z
z
Check swing arm bearings
z
Check/adjust steering head bearings
z
z
z
Check tightness of all chassis screws (triple clamps, fork leg axle passage
z
z
z
Check spoke tension and rim joint
z
z
z
z
Check tires and air pressure
z
z
z
z
Check chain, rear sprockets and chain guides for wear, fitment and tension
z
z
z
z
Lubricate chain, Clean and grease the adjusting screws on the chain tensioner
z
z
z
z
Check clearance of wheel bearings
z
z
z
axle nuts and screws, swing arm bearings, shock absorber)
WHEELS
ENGLISH
20
z
z
Check gear box oil level
Change gear box oil
every 40 hours
A CLEAN MOTORCYCLE CAN BE CHECKED MORE QUICKLY WHICH SAVES MONEY
every 20 hours
125 EXC 2010
Before each
race
1st service after
10 hours
PERIODIC MAINTENANCE SCHEDULE »
The kilometer reading for inspection intervals should not exceed 5 hours.
Maintenance work performed by your authorized KTM workshop is not a substitute for care and maintenance by the driver!
z
z
C/H
Clean and adjust carburetor
Check the reed-type intake valve for wear
C
C/H
C
C/H
Check the wear on the clutch disks and length of the clutch springs
C
C/H
C
C/H
Check the cylinder and piston for wear
C
C/H
C
C/H
C/H
C/H
C
C/H
Check function of exhaust control
Check piston pin bearing
C/H
C
C/H
C/H
Replace the crankshaft main bearings
Replace the conrod bearings
C
C/H
Check the entire transmission, the shift mechanism and bearings
C
C/H
Complete maintenance of fork
C
C
H
C/H
C/H
21
C/H
C
Complete maintenance of shock absorber
Clean and grease steering head bearings and gasket elements
Replace the sealing cup for the foot brake cylinder
C
C/H
C
C/H
Replace the glass-fiber yarn filling in the silencer
C
C/H
C
C/H
Treat electric contacts and switches with contact grease
Change break fluid
C/H
C/H
Replace the throttle slide, jet needle, float needle valve, needle nozzle
ENGLISH
IMPORTANT SERVICE WORK THAT MUST BE PERFORMED BY AN AUTHORIZED KTM WORKSHOP
UNDER A SEPARATE ORDER
Every 2 years
125 EXC 2010
Every 20
hours
Every 40
hours
Every 60
hours
Every 80
hours
At least once
a year
PERIODIC MAINTENANCE SCHEDULE »
C
C/H
C
C/H
C/H
C/H
C/H
Change the hydraulic clutch oil
C = FOR COMPETITIVE OFFROAD RACING (COMPETITION)
H = FOR OFFROAD HOBBY USE
IMPORTANT CHECKS AND MAINTENANCE TO BE CARRIED OUT BY THE RIDER
Check gear box oil level
z
Check brake fluid level
z
Check brake pads for wear
z
Check lights for function
z
Check horn for function
z
z
Lubricate and adjust cables and nipples
z
Bleed fork legs regulary
z
Remove and clean dust bellows regularly
Clean and lubricate chain, check tension and adjust if necessary
z
z
Clean air filter and filter box
z
z
Check tires for pressure and wear
z
Check cooling liquid level
z
Check fuel lines for leaks
z
Empty and clean float chamber
z
Remove, clean and oil the throttle slide
z
Check all control elements for smooth operation
z
Check brake performance
z
Treat blank metal parts (with the exception of brake and exhaust systems)
once a year
125 EXC 2010
before each
start
after every
cleaning
for cross
country use
Note:If the inspection establishes that permissible tolerances are exceeded, the respective components must be replaced.
z
z
z
with wax-based anti corrosion agent
Treat ignition and steering locks and light switches with contact spray
Check tightness of screws, nuts and hose clamps regularly
z
z
MAINTENANCE WORK ON CHASSIS AND ENGINE »
Maintenance and adjusting work marked with an asterisk * requires expert skills and technical know-how. For your own safety, always
have such work performed by a specialized KTM dealer where your motorcycle will be optimally serviced by appropriately qualified,
skilled staff.
ENGLISH
– If using a power washer, do not point the water jet at the electric components, plugs, cables, bearings, carburetor, etc. The high
pressure will cause water to penetrate into the components and can cause them to malfunction or lead to premature wear.
– When transporting your KTM, ensure that it is held upright with restraining straps or other mechanical fastening devices and that
the fuel tap is in the OFF position - if the motorcycle should fall over, no fuel can leak from the carburetor or fuel tank
– Only use special screws with an appropriate thread length supplied by KTM to fix the spoilers on the tank. Using other screws or
longer screws can cause leaks in the tank through which fuel can flow out.
– Do not use toothed washers or spring rings with the engine fastening screws, as these work into the frame parts and keep working
loose. Instead, use self-locking nuts.
– If you unscrewed any screwed connections with self-locking nuts, they must be replaced when mounting. If no self-locking nuts
are available, apply Loctite 243 to the thread. The screws and nuts must be replaced if the thread is damaged.
– All screws and nuts must be tightened to the specified torque figures using a torque wrench. If screws or nuts are not adequately
tightened, they can become loose and cause the motorcycle to go out of control while you drive. Tightening the screws and nuts
too tightly can damage the thread and components.
– Let your motorcycle cool down before beginning any maintenance work in order to avoid getting burned.
– Dispose of oils, fatty matters, filters, fuels, washing detergents, etc. properly.
– Under no circumstances may used oil be disposed of in the sewage system or in the open countryside. 1 liter of used oil contaminates 1,000,000 liters of water.
22
Changing the spring preloading of the shock absorber
The spring preload can be changed by turning the adjusting ring [1]. For this
purpose, you should dismount the shock absorber and clean it thoroughly.
NOTE:
– Before changing the spring preload note down the basic setting, e.g. how
many threads are visible above the adjusting ring.
– One rotation of the adjusting ring [1] changes the spring pretension by
approximately 1.75 mm (0.07 in).
2
Loosen the clamping screw [2] and use the hook wrench contained in the
vehicle tool set to turn the adjusting ring as desired. Turning it counterclockwise will reduce the preload, turning it clockwise will increase the preload.
After readjusting the clamping screw [2], tighten it to 8 Nm (6 ft.lb)
1
A
STANDARD SETTING – SPRING PRELOAD [A]
Typ WP Suspension 12187E02 . . . . .7 mm
Pivot bearing
The pivot bearing [3] for PDS suspension struts at the swinging fork is Tefloncoated and must not be lubricated with either grease or other lubricants. Grease
and other lubricants cause the Teflon coat to dissolve, whereby the bearing’s
lifecycle will be reduced dramatically.
When cleaning your bike with a high-pressure cleaner, do not aim the highpressure spray directly at the pivot bearing.
3
MAINTENANCE WORK ON CHASSIS AND ENGINE »
Basic suspension setup for the weight of the driver
To achieve maximum handling performance and to prevent the fork, shock
absorber, swing arm and frame from being damaged, the basic setup of the
suspension components must be suitable for your weight. At delivery, KTM's
offroad motorcycles are set to accommodate a driver weighing 75 bis 85 kg
(wearing full protective clothing). If your weight exceeds or falls short of this
range, you will need to adjust the basic setup for the suspension components
accordingly. Minor deviations in weight can be compensated by adjusting the
spring preload. Different springs must be installed for larger deviations.
A
Checking the shock absorber and spring
Determining the static sag of the shock absorber
The static sag setting should be as precise as possible. Deviations of more
than 2 mm can strongly influence the motorcycle's performance.
Procedure:
– Jack up the motorcycle until the rear wheel no longer touches the ground.
– Measure the vertical distance between the rear wheel axle and a fixed point
(e.g. a mark on the side cover) and write it down as dimension A.
– Place the motorcycle on the ground again.
– Ask a helper to hold the motorcycle in vertical position.
– Measure the distance between the rear axle and the fixed point again to
establish dimension B.
– The static sag is the difference between dimensions A and B.
B
EXAMPLE:
Motorcycle jacked up (dimension A) . . . . . . . . . . . . . . . . . . . . . .600 mm
Motorcycle on ground, unloaded (dimension B) . . . . . . . . . . . .– 565 mm
Static sag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35 mm
If the static sag is lower, the spring preload of the shock absorber must be
increased, if the static sag is reduced, the spring preload must be higher. See
chapter "Changing the spring preload of the shock absorber."
Typ
12187E02
Static sag
35 mm ± 2 mm
Riding sag
105 mm ± 5 mm
C
Determining the riding sag of the shock absorber
– Have a helper hold the motorcycle while you sit on the bike in a normal
seating position (feet on the footrests) wearing full protective clothing and
bounce up and down a few times to allow the rear wheel suspension to
become level.
– Stay on the bike and have another person measure the distance between
the same two points and write it down as dimension C.
– The riding sag is the difference between dimensions A and C.
SPRING RATE
for example
65
shock absorber 125 EXC
69-250
66-250
63-250
70
75
80
85
90
Riders weight inclusive gears in kilogram
95
EXAMPLE:
Motorcycle jacked up (dimension A) . . . . . . . . . . . . . . . . . . . . . .600 mm
Motorcycle on ground, loaded (dimension C) . . . . . . . . . . . . . .– 500 mm
Riding sag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100 mm
Riding sag settings (see above).
If the riding sag is too low the spring is too hard (spring rate is too high).
If the riding sag is too high, the spring is too soft (spring rate too low).
The spring rate is written on the outside of the spring (e.g. 66-250). The type
number of the shock absorber is embossed on the front of the shock absorber.The
illustrations show which spring should be installed. The standard spring is
shown in bold print.
Readjust the static sag after mounting a new spring.
ENGLISH
You can establish whether or not the shock absorber spring is suitable for your
weight by checking the riding sag. The static slag must be correctly adjusted
before the riding sag can be determined.
23
MAINTENANCE WORK ON CHASSIS AND ENGINE »
TYPE
SOFTER
STANDARD HARDER
12187E02
63-250
66-250
69-250
According to our experience, the damping rate of the compression stage can
remain unchanged. The damping rate of the rebound stage can be reduced
by a few clicks for a softer spring or increased by a few clicks for a harder
spring.
Checking the basic setup of the telescopic fork
ENGLISH
The precise riding sag of the telescopic fork cannot be determined for various reasons. Similar to the shock absorber, smaller deviations in your weight
can be compensated by adjusting the spring preload. However, if your telescopic fork bumps frequently (hard end stop during compression), you should
install harder fork springs to avoid damaging the telescopic fork and frame.
Your KTM dealer will be happy to offer advice.
24
Changing the spring preload on the telescopic fork
The telescopic forks for these models are equipped with a preload adjuster.
You can easily adjust the spring preload by 10 mm by turning the adjusting
screw [1].
Turning in a clockwise direction will increase the prestress, turning in a counterclockwise direction will decrease the prestress.
Changing the spring preload will not affect the rebound damping adjustment.
Generally, if the spring preload is higher, the rebound damping should also
be set higher.
1
STANDARD SETTING:
Turn the adjusting screw all the way to the stop in a counterclockwise direction and 2 turns in a clockwise direction.
Breather plug front fork
After every 5 hours of use for competitive racing, slacken the breather
plugs [2] a few turns in order to relieve excess pressure from the inside of the
fork. To do this, place the motorcycle on a stand with the front wheel lifted
off the ground. When riding the motorcycle mainly on the road, it will suffice
to have this job performed in the course of the periodical maintenance
service.
2
Excessive pressure in the interior of the fork can cause leaks in the fork. If
your fork is leaking, it is recommended to open the breather plugs before having the seals replaced.
Cleaning the dust sleeves of the telescopic fork
The dust-protection bellows [2] are to remove dust and coarse dirt particles
from the fork tube. However, after some time, dirt may also get in behind the
dust-protection bellows. If this dirt is not removed, the oil sealing rings located
behind it may start to leak.
Remove the screws [3] from the fork protector and allow the fork protector to
hang down. Pry the dust boot out of the outer tubes and push down.
3
3
3
MAINTENANCE WORK ON CHASSIS AND ENGINE »
Thoroughly clean the dust boots, slide rings, outer tubes and fork tubes and
oil generously with Universal oil spray (Motorex Joker 440) or engine oil. Press
the dust boots into the outer tubes by hand. Position the fork protectors, mount
the screws and torque to 10 Nm.
No oil may reach the front tire or the brake disks since this would considerably reduce the tire's road grip and the braking effect of the front brake.
2
Check steering head bearing for play periodically. To check, put the motorcycle
on a stand so that the front wheel is off the ground. Now try to move the fork
forward and backward.
To adjust, loosen the 5 clamping screws on the upper triple clamp and turn the
end screw [5, 8] until no play is left. Don’t tighten the steering stem bolt all the
way, otherwise the bearings will be damaged. With a plastic hammer, lightly tap
on the triple clamp to release tension. Retighten the five pinch bolts.
Clamping screws 4
5
4
6
4
Clamping screws [4] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 Nm
Clamping screw [6] . . . . . . . . . . . . . . . . . . . . . .Loctite 243 + 20 Nm
25
– If the steering head bearing is not adjusted to be free of play, the motorcycle will exhibit unsteady driving characteristics and can get out of control.
– Hold the clamp screw [6] in place with Loctite 243.
If you drive with play in the steering head bearing for longer periods, the bearings and subsequently the bearing seats in the frame will be destroyed.
The steering head bearings should be regreased at least once a year
(e.g. Motorex Long Term 2000).
How to change the handlebar position
The handlebar position can be readjusted by 22 mm. Thus, you can put the
handlebar in the position that is the most convenient for you. The upper triple
clamp [1] includes 2 bores arranged at a distance of 15 mm (0.6 in) from
one another. The bores at the handlebar support [2] are offset from the center by 3.5 mm (0.13 in). Accordingly, you can mount the handlebar in
4 different positions.
3
4
mm
15
1
2
3,5 mm
ENGLISH
Checking and adjusting the steering head bearing *
For this purpose, remove screws [3] of the handlebar clamps and screws [4]
of the handlebar support. Position the handlebar support, and tighten screws
[4] to 40 Nm (30 ft.lbs). Mount the handlebar and handlebar clamps, and
tighten screws [3] to 20 Nm (15 ft.lbs). The gap between the handlebar support and the handlebar clamps should be the same size in the front and in
the rear.
The screws [4] must be secured with loctite 243.
MAINTENANCE WORK ON CHASSIS AND ENGINE »
Adapting the chain guide to the number of rear sprocket teeth
NOTE:
The position of the chain guide must be adjusted due to the large number of
rear sprockets available. Up to 44 teeth, insert the retaining screw on the
chain guide in the lower hole [B], from 45 teeth in the upper hole [C].
C
B
ENGLISH
Loosen both screws on the chain guide and pull the chain guide off the swing
arm. Turn the chain guide over, press out the retaining nut [1] and insert it
in the other hole [2], turning the retaining nut around.
Remount the chain guide and tighten the screws.
1
2
26
A
Check chain tension
Jack the motorcycle up on its frame so that the rear wheel no longer touches
the ground.
Press the chain upward at the end of the chain sliding component. The distance between the chain and the swing arm should be approx. 8 - 10 mm
(0.31 - 0.39 in). In the course of this procedure, the upper chain portion [A]
must be taut (see drawing). If necessary, correct the chain tension.
– If the chain tension is too great, parts within the secondary transmission
(chain, chain wheels and rear wheel bearings) will be subjected to unnecessary stress, resulting in premature wear and even chain breakage.
– Too much slack in the chain, on the other hand, can result in the chain
jumping off the chain wheels. If this happens, the chain could also block
the rear wheel or damage the engine.
– In either case the operator is likely to lose control of the motorcycle.
8 -1
0m
m/
0.3
- 0.4
in
MAINTENANCE WORK ON CHASSIS AND ENGINE »
Correct chain tension
2
– If you don’t happen to have a torque wrench at hand, make sure you have
the tightening torque corrected by a KTM dealer as soon as possible. A
loose axle may lead to an unstable driving behavior of your motorcycle.
– Tighten the collar nut with the required torque. A loose wheel spindle may
lead to an unstable behavior of your motorcycle.
4
1
3
B
NOTE:
The large adjusting range of the chain adjusters (32mm / 1.25 in) allows you
to use different secondary ratios in combination with the same chain length.
The chain adjusters [4] can be rotated by 180°.
Always mount the chain tensioner equally aligned.
2
4
ENGLISH
3
B
Loosen collar nut [1], loosen lock nuts [2], and turn right and left adjusting
screws [3] equally far. Tighten lock nuts.
Before tightening the collar nut, verify that the chain adjusters [4] are sitting
close to the adjusting screws and that the rear wheel has been aligned with
the front wheel.
Tighten collar nut [1] to 80 Nm.
27
Chain maintenance
Maintenance of the X-ring chain is reduced to a minimum. Rinse off any heavy
dirt with plenty of water. Residual used grease must be removed prior to lubrication (Motorex Chain Clean 611). After drying, use a chain spray specially
designed for X-ring chains (Motorex Chainlube 622).
No lubrication is allowed to reach the rear tire or the brake disk, eitherwise
the road adherence and the rear wheel braking effects would be strongly reduced
and the motorcycle could easily get out of control.
When mounting the chain joint, the closed side of the safety device must point
in running direction.
Also check sprockets and chain guides for wear, and replace if necessary.
15 KG
33 lbs
Chain wear
To check the chain wear, observe the following indications:
Shift the gear into idling and pull the upper chain strand with approx. 10-15
kilograms (33 lb) upwards (see figure). Now one can measure a space of 18
chain reels at the lower chain strand. The chain should be replaced at the latest when a space of 272 mm (10.70 in) is measured. Chains do not always
wear off evenly, therefore repeat the measurement at different places on the
chain.
NOTE:
If you mount a new chain, the sprockets should also be replaced. New chains
wear faster if used on old used sprockets.
Secure the screws of the chain wheel by applying Loctite and fasten them in
a crosswise order.
Tightening torque for nuts: 35 Nm
Tightening torque for screws: 50 Nm
max. 272 mm
1 2 3
16 17 18
MAINTENANCE WORK ON CHASSIS AND ENGINE »
General information about KTM disc brakes
BRAKE CALIPERS:
The brake calipers of this series use a „floating“ mount. This means that the
brake calipers are not solidly attached to the caliper support, which enables
them to ”float” for maximum braking contact.Secure the screws of the caliper
support with Loctite 243 and tighten to 25 Nm.
ENGLISH
BRAKE PADS:
The brake pads are fitted with TOSHIBA TT 2701HHB (Six Days models TOYO
B153) sintered lining at the front and TOYO B 143 FF sintered lining at the
back. These linings provide an optimal combination of dosing, brake performance and life cycle. The lining type is stated on the back of the brake pad
and also recorded in the homologation papers.
28
A
1
BRAKE DISCS:
Due to wear, the thickness of the brake disc in the area of the contact
face [1] of the brake pads decreases. The brake disk must be at least
2.50 mm (front) / 3.50 mm (rear) thick at the thinnest point [A]. Check the
thickness of the brake disk at several points.
– A brake disk worn down to less than 2.50 mm (Front) / 3.50 mm (Rear)
is a safety risk. Have the brake disk replaced as soon as it reaches the
service limit.
– Have any repairs on the brake system be performed by a KTM dealer.
BRAKE FLUID RESERVOIRS:
The brake fluid reservoirs on the front and rear wheel brakes have been
designed in such a way that even if the brake pads are worn it is not necessary to top up the brake fluid. If the brake fluid level drops below the minimum level either the brake system has a leak or the brake pads are completely
worn.
In this case, consult an authorized KTM dealer immediately.
BRAKE FLUID:
We recommend that you use Motorex DOT 5.1 brake fluid when you refill or
change the brake fluid. DOT 5. 1 brake fluid has a wet boiling point of 180°C
/ 356°F (25°C / 45°F higher than DOT 4) and is safer for high performance
applications. Brake fluid DOT 5.1 is a polyethylene glycol based fluid, ambercolored and can be mixed with DOT 4 brake fluid. Do not, in any event, use
DOT 5 brake fluid. It is based on silicone oil and is dyed purple. KTM motorcycle gaskets and brake hoses are not designed for DOT 5 brake fluid.
Brake fluid is exposed to a high thermal load and absorbs moisture from the
air, which lowers the boiling point. The brake fluid should therefore be changed
at the prescribed intervals.
Have the brake fluid changed at least once annually. If you wash your motorcycle often, the brake fluid should be changed even more frequently. Brake
fluid tends to absorb water. Therefore, vapor pockets may form in „old“ brake
fluids even at low temperatures, causing the brake system to fail.
MAINTENANCE WORK ON CHASSIS AND ENGINE »
Changing the basic position of the hand brake lever
min. 3 mm
1
You can change the basic position of the hand brake lever with the adjusting
screw [1]. The position of the pressure point (the resistance you feel on the
hand brake lever when the brake pads are pressed against the brake disk) can
be adjusted for any hand size.
Models without front brake light switch:
When you push the hand brake lever forwards, you must have at least 3 mm
free travel.
Models with front brake light switch:
When you actuate the hand brake lever, you must have at least 3 mm free travel.
Checking the brake fluid level - front brake
The brake fluid reservoir is linked with the hand brake cylinder at the
handlebar and the reservoir is provided with an inspection glass. With the reservoir in a horizontal position, the brake fluid level should not drop below the
middle of the glass.
If the brake fluid level drops below the minimum either the brake system has
a leak or the brake pads are completely worn. In this case, consult an authorized KTM dealer immediately.
2
3
4
5 mm
min.
1 mm
Refilling the front brake fluid reservoir *
Loosen screws [2] and remove lid [3] and membrane [4].
Place hand brake cylinder in a horizontal position and fill the brake fluid reservoir to 5 mm (0.2 in) below the rim with clean brake fluid DOT 5.1 (e.g. Motorex
Brake Fluid DOT 5.1). Replace membrane and lid, tighten screws. Rinse off
spilled or overflowing brake fluid with water.
– Never use DOT5 brake fluid! It is based on silicone oil and of a
purple color. Seals and brake hoses must be especially adapted to it.
– Store brake fluid out of reach of children.
– Brake fluid can cause skin irritation. Avoid contact with skin and eyes. If
you get brake fluid in your eyes, rinse with plenty of water and consult a
doctor
– Don’t let brake fluid get in contact with paint, it is an effective paint remover.
– Use only clean brake fluid taken from a tightly sealed container.
Checking the front brake pads
The brake pads can be inspected from below. The linings must be at least 1
mm (0.04 in) thick.
At their most worn point brake pad linings should not be thinner than 1 mm,
otherwise they could lead to brake failure. For your own safety don’t put off
having your brake pads changed.
If the brake pads are replaced too late so that the lining is partly or entirely
worn, the steel components of the brake pad will rub against the brake disc,
thereby imparing the braking effect and destroying the brake disc.
ENGLISH
At the hand brake lever, free travel must at least be 3 mm (0.1 in). Only then
may the piston in the hand brake cylinder be moved (to be recognized by the
greater resistance of the hand brake lever). If this free travel is not provided,
pressure will build up in the braking system, and the front-wheel brake may
fail due to overheating.
29
MAINTENANCE WORK ON CHASSIS AND ENGINE »
Replacing the front brake pads *
Press the brake caliper toward the brake disk, to put the brake piston in its
basic position. Remove clips [1] and pull out bolt [2]. Remove brake pads
from the brake caliper. Clean the brake caliper and the brake caliper support
with compressed air. Check the sleeves of the guide bolts for damage, and
grease guide bolts if necessary.
Mount the right brake pad and fix it with the bolt. Mount the left brake pad
and insert the bolt until it stops. Mount the clips.
When mounting the brake pads, be sure to check for correct fit of the
sliding metal-sheet [3] in the caliper support and of the leaf spring [4].
1
2
1
– It is very important to keep the brake disk free from oil and fatty matters.
Otherwise, the braking effect would be strongly reduced.
– After assembly, check if circlips have been fitted correctly.
– after working on the braking system, always actuate the hand brake lever
or foot brake lever, respectively to ensure that the brake pads will lie against
the brake disk and the pressure point is established.
ENGLISH
4
3
2
30
Checking the rear brake fluid level
The reservoir for the rear brake disk is located on the right side of the motorcycle on the rear brake cylinder.
No air bubble should be visible in inspection glass [A] when the vehicle is
parked in a vertical position.
If the brake fluid level drops below the minimum either the brake system has
a leak or the brake pads are completely worn. In this case, consult an authorized KTM dealer immediately.
A
Refilling the rear brake fluid reservoir *
5
Add brake fluid as soon as a bubble is visible in inspection glass [A].
To top up, remove screw [5]. Fill DOT5.1 brake fluid (e.g. Motorex Brake Fluid
5.1) up to the mark [B] on the inside of the reservoir and remount the screw.
Spilled brake fluid must be rinsed off with water.
– Never use DOT5 brake fluid! It is based on silicone oil and of a purple
color. Seals and brake hoses must be especially adapted to it.
– Store brake fluid out of reach of children.
– Brake fluid can cause skin irritation. Avoid contact with skin and eyes. If
you get brake fluid in your eyes, rinse with plenty of water and consult a
doctor.
– Don’t let brake fluid get in contact with paint, it is an effective paint remover.
– Use only clean brake fluid taken from a tightly sealed container.
B
MAINTENANCE WORK ON CHASSIS AND ENGINE »
Changing the basic position of the foot brake pedal *
4
To change the basic position of the foot brake lever, loosen the counternut
[1] and turn the stop screw [2] as needed. Be sure to adjust the free travel
of the foot brake lever. Measured on the outside, the foot brake lever should
have 3-5 mm free travel before the piston rod moves the piston in the foot
brake cylinder (you will feel the stronger resistance of the foot brake lever).
Loosen the counternut [3] and turn the pushrod [4] as needed.
3
2
ENGLISH
1
The brake system will build up pressure if there is no free travel on the foot
brake lever. This will cause the brake pads to grind. The brake system will
overheat and can break down entirely in extreme cases.
3-5mm
31
Checking the rear brake pads
min.
1 mm
The brake pads can be inspected from the rear. The thickness of the linings
may not be less than 1 mm (0.04 in).
At their most worn point brake pad linings should not be thinner than 1 mm,
otherwise they could lead to brake failure. For your own safety don’t put off
having your brake pads changed.
If the brake pads are replaced too late so that the lining is partly or entirely
worn, the steel components of the brake pad will rub against the brake disc,
thereby imparing the braking effect and destroying the brake disc.
5
6
6
7
Replacing the rear brake pads *
Press the brake caliper [5] in the direction of the chain wheel for the brake
piston to reach its basic position. Remove the safety device [6], knock out
the guide pin [7] from the brake caliper with a drift towards the chain wheel
and remove the brake pads. Carefully clean the brake caliper with compressed
air and check the sleeves of the guide pins for damage.
Slide the left brake pad into the brake caliper and fix it with the pin. Slide in
the right brake pad and knock the bolt [7] in as far as it will go. Mount the
safety device [6].
– It is very important to keep the brake disk free from oil and fatty matters.
Otherwise, the braking effect would be strongly reduced.
– After assembly, check if circlips have been fitted correctly.
– After working on the braking system, one must always actuate the hand
brake lever or foot brake lever, respectively so as to ensure that the brake
pads will lie against the brake disk and the pressure point is established.
MAINTENANCE WORK ON CHASSIS AND ENGINE »
Dismounting and mounting the front wheel
To remove the front wheel, jack the motorcycle up on its frame so that the
front wheel no longer touches the ground.
Loosen the collar screw [1] and the clamping screws [2] on both fork leg axle
passages.
Unscrew the collar screw approx 8 turns, press on the collar screw with your
hand to push the wheel spindle out of the fork leg axle passage and remove
the collar screw. Hold the front wheel while you pull out the wheel spindle.
Lift the front wheel off the fork.
2
1
– Do not operate the hand brake when the front wheel has been dismounted.
– Make sure the brake disc is always on top when you lay down the wheel,
otherwise the brake disc can be damaged.
ENGLISH
2
3
32
Before remounting the front wheel, clean and grease the shaft seal rings [A]
and the bearing surface [B] of the distance bushings and mount the distance
bushing.
B
A
To install the front wheel, lift it into the fork, position and mount the axle
shaft [3]. Mount the collar nut [1], tighten the clamping screws [2] on the
right fork leg axle passage to prevent the axle shaft from turning and tighten
the collar nut to 45 Nm.
Loosen the clamp screws on the right fork leg. Take the motorcycle down from
its stand. Press the front wheel brakes and push down on the fork a few times
vigorously so that the fork legs come into alignment.
Only after this has been accomplished, tighten the clamp screws on both fork
legs with 15 Nm.
2
3
– If you don’t happen to have a torque wrench at hand, make sure you have
the tightening torque corrected by a KTM dealer as soon as possible. A
loose axle may lead to an unstable driving behavior of your motorcycle.
– After mounting the front wheel, keep operating the hand brake until the
pressure point returns.
– It is very important to keep the brake disk free from oil and fatty matters,
otherwise the braking effect would be strongly reduced.
2
1
MAINTENANCE WORK ON CHASSIS AND ENGINE »
Dismounting and mounting the rear wheel
Jack the motorcycle up on its frame so that the rear wheel no longer touches
the ground.
Remove the collar nut [1], remove the chain tensioner [2] and pull out the
wheel spindle [3] until you can push the rear wheel forwards.
Take the chain off the rear sprocket, pull out the wheel spindle and carefully
remove the rear wheel from the swing arm.
2
ENGLISH
1
– Do not operate the rear brake when the rear wheel has been dismounted.
– Make sure the brake disc is always on top when you lay down the wheel,
otherwise the brake disc can be damaged.
– If the axle is dismounted, clean the thread of the wheel spindle and collar nut thoroughly and apply a new coat of grease to prevent the thread
from jamming.
3
33
The rear wheel is remounted in the reverse order. Before tightening the collar nut to 80 Nm, push the rear wheel forwards so that the chain tensioners
lie on the tension screws.
– If you don’t happen to have a torque wrench at hand, make sure you have
the tightening torque corrected by a KTM dealer as soon as possible. A
loose axle may lead to an unstable driving behavior of your motorcycle.
– After mounting the rear wheel, keep operating the rear brake until the pressure point returns.
– It is very important to keep the brake disk free from oil and fatty matters,
otherwise the braking effects would be strongly reduced.
– Tighten the collar nut with the required torque. A loose wheel spindle may
lead to an unstable behavior of your motorcycle.
Tires, air pressure
Tire type, tire condition, and air pressure level affect the way your motorcycle rides and must therefore be checked whenever you are getting ready to go
anywhere on your motorcycle.
– Tire size can be found in the technical specifications and in the homologation certificate
– Tire condition has to be checked every time you want to ride your motorcycle. Before leaving, check tires for punctures and nails or other sharp
objects that might have become embedded in them.
– Refer to the specific regulations in your country for minimum tire tread
requirements. We recommend you replace the tires at the latest when the
tread is down to 2 mm (0.08 in).
– Tire pressure should be checked regularly on a “cold” tire. Proper pressure ensures optimum driving comfort and extends the life of your tires.
TIRES – AIR PRESSURE
front
rear
Off-road
1,0 bar
1,0 bar
Road
1,5 bar
2,0 bar
– Do not mount tires which have not been approved by KTM. Other tires
could have adverse effects on the way your motorcycle behaves.
– front and rear wheels may only be fitted with tires having the same tread
layout. Use homologated tires
– For your own safety replace damaged tires immediately.
– Worn tires can have a negative effect on how your motorcycle performs,
especially on wet surfaces
– If air pressure is too low, abnormal wear and overheating of the tire can
result
– Only mount tires approved by KTM on homologated models (see Technical
Data for Chassis). No product liability will be assumed if other types of
tires are used.
MAINTENANCE WORK ON CHASSIS AND ENGINE »
Checking spoke tension
The correct spoke tension is very important for the stability of the wheels and
thus for riding safety. A loose spoke causes the wheel to become
unbalanced and before long other spokes will have come loose. Check spoke
tension, especially on a new motorcycle, at regular intervals. For checking,
tap on each spoke with the blade of a screwdriver (see photo). A clear tone
must be the result. Dull tones are indicators of loose spokes. If necessary,
have the spokes retightened and the wheel centered by a KTM dealer.
– Spokes can tear if you continue to ride with them loose. This may lead to
an unstable handling of your motorcycle.
– Excessively tensioned spokes may rupture due to local overloading.The
spokes must be tensioned to 5 Nm.
Replacing the battery of the digital speedometer
ENGLISH
A
Remove the headlight mask and disassemble the electronic speedometer.
Remove the screw connection [A], insert the battery (type Duracell CR 2430)
with the writing facing up and reinstall the screw connection.
34
Replacing the headlight lamp/parking light lamp
4
Loosen both rubber bands and tilt the headlight mask to the front. Pull the
parking light lamp with holder [3] carefully out of the reflector. Pull
connector [4] off the headlamp and remove rubber cap [5]. Disengage retaining clip and take the bulb out of the reflector. When changing the parkinglight lamp, simply pull it out of the holder.
5
3
4
Slightly depress the bulb, turn it approx. 30° counterclockwise and pull it out
of the socket.
To mount the lamp reverse the worksteps indicated above.
35
ENGLISH
MAINTENANCE WORK ON CHASSIS AND ENGINE »
Cooling system
The water pump [1] in the engine circulates the cooling liquid. The cooling
liquid is cooled by the air stream. This means that the cooling effect decreases
with the traveling speed. Dirty radiators additionally reduce the cooling effect.
Pressure induced by heating of the coolant in the system is controlled by a
valve in the radiator cap [2]; a water temperature rising up to 120° C
(248° F) is admissible, without fear of problems.
Some models are equipped with a thermostat so that the engine reaches its
operating temperature more quickly. When the engine is cold, the liquid
coolant circulates in the cylinder and the cylinder head. As soon as the
cooling liquid has reached a temperature of approximately 55°C, the thermostat opens and the cooling liquid is also pumped through the two aluminum
radiators.
1
ENGLISH
1
36
– If possible, always check level of cooling liquid when engine is cold. If
you have to open the radiator cap [2] when the engine is hot, use a rag to
cover the cap and open slowly to release pressure.
Caution - scalding hazard.
– Do not detach any radiator hoses while the engine is hot. The escaping
hot coolant and the steam may cause serious burns.
– In case you get burnt, hold the affected part of your body under running
cold water right away.
– Coolant is toxic. Keep the coolant out of the reach of children.
– In case coolant is ingested, consult a doctor immediately.
– If coolant gets into your eyes, rinse them out with water immediately and
go see a doctor.
Use a mixture of 50% antifreeze and 50% distilled water for the cooling
liquid. The antifreeze should be designed for temperatures of at least -25°C.
This mixture offers frost protection as well as good corrosion protection and
should not be replaced by water alone.
2
For the cooling system, use only with high-grade antifreeze (e.g. Motorex AntiFreeze). Using lower-grade antifreeze agents can cause corrosion and coolant
foaming.
MAINTENANCE WORK ON CHASSIS AND ENGINE »
Checking the coolant level
The coolant should be 10 mm (0.4 in) above the radiator fins when the engine
is cold (see diagram). In the event of the coolant being drained, always fill
and bleed the system.
10 mm
when engine ist cold
If possible, always check the level of cooling liquid when the engine is cold.
If you have to open the radiator cap when the engine is hot, use a rag to cover
the cap and open slowly to release pressure.
By removing the screw [1] at the water pump cover you can drain the coolant.
To bleed the cooling system, add coolant up to approx. 10 mm above the radiator fins when the engine is cold.
After a short ride, check the coolant level once more.
1
1
ENGLISH
Bleeding the cooling system
37
Cleaning the air filter *
The air filter must be cleaned prior to each race or whenever dust has accumulated. To clean, lift the filter box cover
(see illustration) and pull off towards the front.
Detach the bottom of the filter retaining bracket [2], tilt aside and remove
the air filter [3] and filter support [4] from the filter box.
– Do not clean foam filter with fuel or petroleum since these damage the
foam. KTM recommends the products of the company Motorex for air filter maintenance (Dirt Bio Remover and Liquid Bio Power).
– Never start your motorcycle without any air filters. otherwise, dust and dirt
may penetrate and cause damage and increased wear.
– Dust and dirt can accumulate and damage the engine if the air filter is
not mounted correctly.
Thoroughly wash the air filter in special cleaning fluid (Motorex Twin Air Dirt
Bio Remover) and allow it to dry well. Only press out the filter, do not wring
it out under any circumstances. Oil the dry air filter with a high-grade filter
oil (Motorex Twin Air Liquid Bio Power). Also clean the air filter box. Check
the carburetor collar for damage and that it is filled correctly.
Place the air filter on the filter support and insert both in the center of the
filter box. Hold in place with the filter retaining clip.
3
2
4
3
2
MAINTENANCE WORK ON CHASSIS AND ENGINE »
Exhaust system *
If the end cap [1] can be removed, the silencer is filled with glass-fiber yarn.
Have the filling checked regularly by an authorized KTM workshop (see
Lubrication and Service Chart). The insulating material fibers escape through
the holes in the perforated pipe with time, causing the silencer to “burn out”.
In addition to causing a higher noise-level, it will also affect the power characteristic. The insulating material suitable for your exhaust is available from
your authorized KTM workshop.
To replace the glass-fiber yarn set [2] remove the end cap and pull off the
outer pipe [3]. Tape a new glass-fiber yarn set to the inner tube and slide on
the outer pipe. Mount the end cap.
Make sure the caps are screwed on tightly. Mount the muffler stress-free before
tightening the fixing screws.
2
1
3
The exhaust system becomes very hot while the motorcycle is running. Do not
start work on the exhaust system until it has properly cooled down, to avoid burns.
ENGLISH
38
Changing the original position of the clutch lever
The adjusting screw [4] can be used for individual adjustment of the original
position of the clutch lever, thus allowing adjustment to an optimal position
for every hand size.
The clutch lever moves closer to the handlebar if the adjusting screw is turned in a clockwise direction. The clutch lever moves away from the handlebar if the adjusting screw is turned in a counterclockwise direction.
4
Adjustment of the clutch lever position is only possible within certain limits.
Only turn the adjusting screw manually and never apply excessive force.
Checking the oil level of the hydraulic clutch
7
6
6
8
To check the oil level in the master cylinder of the clutch remove the cover.
For this purpose, remove screws [6] and cover [7] together with the rubber
boot [8]. The oil level in the horizontal-standing master cylinder should be
4 mm below the upper edge.
If necessary, add SAE 10 biodegradable hydraulic oil (Motorex clutch fluid
75), available from your authorized KTM shop.
KTM uses biodegradable, hydraulic mineral oil to actuate the hydraulic clutch
in 125/200 models. Do not mix this oil with any other hydraulic oil. Always
use original KTM hydraulic oil (available from your authorized KTM workshop)
to make sure your clutch operates smoothly. Never refill with brake fluid.
MAINTENANCE WORK ON CHASSIS AND ENGINE »
Bleeding the hydraulic clutch *
1
1
2
The clutch control needs to be bled as soon as the resistance in the clutch
lever starts to feel unresponsive. You will need to use a bleeding syringe (special tool). Please note that Motorex 75 clutch fluid must be used for the 125/200
models and Motorex DOT. 5.1 brake fluid for the 250/300 models.
Both are available from your KTM dealer.
Turn the handlebar until the master cylinder is in a horizontal position, remove
the screws [1], the cover [2] and the rubber boot [3].
Fill the bleeder syringe [4] with a suitable fluid (see Technical Specifications
- Engine). Remove the bleeder screw from the slave cylinder [5] and mount
the bleeder syringe.
4
5
ENGLISH
3
39
6
Press oil into the system until the fluid runs out of the hole [6] in the master
cylinder without bubbles. Occasionally extract the fluid from the master cylinder reservoir to keep it from overflowing.
After you finish bleeding, remove the bleeder syringe, mount the bleeder screw,
correct the level in the reservoir and mount the cover (see above).
Carburetor adjustment *
Basic information on the original carburetor setting
The original carburetor setting was adapted for an altitude of approx. 500 meters (1600 ft.) above sea level, and the ambient
temperature of approx. 20° C (68° F), mainly for off-road use and central European premium-grade fuel (95 ROZ).
Mixing ratio (2-stroke motor oil : super fuel) 1:60
Basic information on changing the carburetor setting
Always start with the original carburetor setting (the provided factory setting is meant for break-in operation; after the break-in period,
the carburetor needs to be adjusted according to the carburetor datasheet - see appendix). Essential requirements are a clean air filter system, air-tight exhaust system and an intact carburetor. Experience has shown that adjusting the main jet, the idling jet and the
jet needle is sufficient and that changes of other parts of the carburetor will not greatly affect engine performance.
RULE OF THUMB: high altitude or high temperatures > choose leaner carburetor adjustment
low altitude or low temperatures
> choose richer carburetor adjustment
– Only use premium-grade gasoline ROZ 95 (USA = Premium PON 91) mixed with high-grade two-stroke engine oil. Other types of
gasoline can cause engine failure, and will void your warranty.
– Only use high-grade 2-stroke engine oil of known brands (e. g. Motorex Cross Power 2T).
– Not enough oil or low-grade oil can cause erosion of the piston. if you use too much oil the engine can start smoking and foul the
spark plug and the exhaust control system.
– In the case of a leaner adjustment of the carburetor, proceed cautiously. Always reduce the jet size in steps of one number to avoid
overheating and piston seizure.
NOTE: If the engine does not run properly despite a changed adjustment, look for mechanical faults and check the ignition system.
General information on carburetor wear
Engine vibrations subject the throttle slide, jet needle, float needle valve and the needle jet to extreme wear. Wear leads to malfunctioning of the carburetor (e.g. over-enrichment). These parts should be replaced after 100 operating hours. The carburetor body, main jet
holder and the float support should be replaced after 200 operating hours.
MAINTENANCE WORK ON CHASSIS AND ENGINE »
Definitions
Mixture too rich:
Too much fuel in proportion to air.
Mixture too lean:
Not enough fuel in proportion to air.
2
1
ENGLISH
main jet
jet needle
Operation with closed throttle valve. This range is influenced by the position
of the air control screw [1] and the idle adjusting screw [2]. Only make adjustments when the engine is hot.
To this end, slightly increase the idling speed of the engine by means of the
idle adjusting screw. Turning it clockwise produces a higher idling speed and
turning the screw counterclockwise produces a lower idling speed. Create a
round and stable engine speed using the air control screw (basic position of
the air control screw see technical data engine). Then adjust to the normal
idling speed by means of the idle adjusting screw.
jet needle
Opening up B
idle jet
throttle valve
Engine behavior when the throttle opens. The idle jet and the shape of the
throttle valve influences this range. If, despite good idling-speed and partthrottle setting, the engine sputters and smokes when the throttle is fully opened
and develops its full power not smoothly but suddenly at high engine speeds,
the mixture to the carburetor will be too rich, the fuel level too high or the
float needle is leaking.
air control screw
idle adjusting screw
40
Idling range A
Part-throttle range C
Operation with partly open throttle valve. This range is only influenced by the
jet needle (shape and position). The optimum part-throttle setting is controlled
by the idling setting in the lower range and by the main jet in the upper range.
If the engine runs on a four-stroke cycle or with reduced power when it is
accelerated with the throttle partly open, the jet needle must be lowered by
one notch. If then the engine pings, especially when accelerating under full
power at maximum engine revs, the jet needle should be raised.
If these faults should occur at the lower end of the part throttle range at a
four-stroke running, make the idling range leaner; if the engine pings, adjust
the idling range richer.
Full throttle range D
Operation with the throttle fully open (flat out). This range is influenced by
the main jet and the jet needle. If the porcelain of the new spark plug is found
to have a very bright or white coating or if the engine rings, after a short distance of riding flat out, a larger main jet is required. If the porcelain is dark
brown or black with soot the main jet must be replaced by a smaller one.
JET NEEDLE
TYPE
RANGE OF ACTION
RICHER
LEANER
NOZD
NOZE
NOZF
NOZG
Explanation of table - Example
Compared to the needle NOZG, the jet needle NOZI is two steps leaner in
the range from the closed position of the throttle to 1/4 throttle. Otherwise,
there are no differences.
NOZH
NOZI
Pay attention to the correct needle designation when replacing the jet needle. detailed information on the type of jet needle for the respective models
can be found in the carburetor setting table.
MAINTENANCE WORK ON CHASSIS AND ENGINE »
Draining the float chamber of the carburetor
Following every wet-cleaning procedure, the float chamber of the carburetor
should be drained in order to remove any water that may have penetrated into
it. Water in the float chamber leads to engine malfunction.
Make sure you do this while the engine is cold. Close the fuel tap, and place a
cloth under the carburetor, which is capable of absorbing the leaking fuel. Unscrew
the plug [1] and clean it with compressed air. Then, mount the plug together with
the gasket, open the fuel tap, and check the float chamber for leaks.
1
Checking the float level *
Arrange the carburetor diagonally at about 60° so that the spring in the float
needle valve is not pressed together. In this position, the edge of the float
should be parallel with the float chamber sealing surface (see illustration).
60°
ENGLISH
Fuel is easily flammable and toxic. When handling fuel, be sure to exercise
the utmost caution. Never perform any work on the fuel system near open
flames or burning cigarettes. Always allow the engine to cool off first.
Immediately clean up any fuel which may have been spilled. Materials saturated with fuel are also easily flammable. In case you ingested fuel or fuel
splashed into your eyes, consult a doctor immediately.
Dispose of the fuel properly.
41
Adjusting the engine characteristic via the ignition curve
2 ignition curves (PERFORMANCE and SOFT) are stored in the digital box. The
PERFORMANCE ignition curve is activated in the condition at delivery. The SOFT
ignition curve can easily be activated by disconnecting the socket connector
under the tank.
To change the ignition curve, remove the seat and tank.
A) PERFORMANCE (higher engine performance) socket connector connected
B) SOFT (better driveability) socket connector disconnected
You can also change the ignition curve via the handlebar switch (Power Parts)
while driving.
A
B
MAINTENANCE WORK ON CHASSIS AND ENGINE »
Check transmission oil level
In order to check the transmission oil level the control screw [1] on the clutch
cover is to be removed. Oil should just barely escape from the inspection opening when the motorcycle is in an upright position. If necessary, remove the
plug [2] and top up with oil (e. g. Motorex Top Speed 4T 15W50).
1
Transmission and clutch will be subjected to excessive wear and tear if you
use too little or low grade oil. Use only high-grade oil (e. g. Motorex Top Speed
4T 15W50).
Changing the transmission oil *
ENGLISH
2
To change the gear oil warm up the engine and park the motorcycle on a horizontal surface. Remove oil drain plugs [3] and [4] and drain the used oil into
an appropriate container. Clean the magnets of the oil drain plugs and mount
them together with the appropriate gaskets.
M12x1,5
20 Nm
M10x1
15 Nm
Fill in 0.7 l oil (e. g. Motorex Top Speed 4T 15W50), mount the plug [2] and
check the engine for leaks.
Transmission and clutch will be subjected to excessive wear and tear if you
use too little or low grade oil. Use only high-grade oil (e. g. Motorex Top Speed
4T 15W50).
42
4
3
CLEANING »
Clean your motorcycle regularly in order to maintain the beauty of its plastic surfaces.
The best manner would be to use warm water that has been mixed with a normal brand-name washing detergent and a sponge.
The hard dirt can be removed before washing with the help of a soft water jet.
– Before cleaning with water, plug the exhaust pipe to prevent water ingress.
– You should use normal brand-name detergents to clean the motorcycle. Especially dirty parts should also be cleaned with the help
of a paint brush.
– After the motorcycle has been rinsed with a soft water jet, it should be dried by air pressure and a cloth. Then take a short drive
until the engine has reached the working temperature and also use the brakes. By warming these components, the residual water
can evaporate from inaccessable parts of the engine and the brakes.
– Slide back the protective covers on the handlebar-mounted instruments so that any water that may have seeped into this part of
the motorcycle is allowed to evaporate.
– After the motorcycle has cooled down, oil and grease all the gliding bearing parts. Treat the chain with a chain spray.
– To prevent failures in the electric system, you should treat the ignition lock, the emergency OFF switch, the short circuit button,
the light switch and the socket connectors with contact spray.
CONSERVATION FOR WINTER OPERATION »
In the event that the motorcycle is also used in winter and on roads where one has to expect salt spraying, you will have to take precautions against the aggressive road salt.
– clean the motorcycle thoroughly and let it dry after each ride
– treat the engine, carburetor, swing arm, and all other bare or galvanized parts (except for brake discs) with a wax-based anti-corrosion agent.
Keep the anti-corrosion agent from getting into contact with the brake discs, otherwise this will significantly reduce the braking power.
After rides on salted roads, clean motorcycle thoroughly with cold water and let it dry well.
STORAGE »
Should you wish to make a pause over a longer space of time, please observe the following instructions:
– Clean motorcycle thoroughly (see chapter: CLEANING)
– Change engine oil (old engine oil contains aggressive contaminants).
– Check antifreeze and amount of cooling liquid.
– Let the engine warm up again, close fuel cock and wait until the engine dies off by itself. In this way the carburetor jets are prevented from becoming resin- clogged by the old fuel.
– Remove spark plug and fill in approx. 5 ccm of engine oil into the cylinder through the opening. Actuate kick-starter 10 times in
order to distribute the oil onto the cylinder walls and mount the spark plug.
– Let fuel flow out of tank into an appropriate container.
– Correct tire pressure.
– Lubricate bearing points of the control levers, footrests, etc. as well as the chain.
– Disassemble and charge battery (see chapter: BATTERY).
– The storage place should be dry and not be subjected to too big temperature fluctuations.
– Cover the motorcycle with an air permeated tarp or blanket. Do not use non airtight materials as a possible humidity might not be
able to escape and thereby cause corrosion.
It would be very bad to let the engine run for a short time during the storage period. The engine would not get warmed up enough and
the thus developed steam would condense during the combustion process and cause the valves and exhaust to rust.
USE AFTER A PERIOD OF STORAGE
–
–
–
–
–
Mount the charged battery (regard polarity).
Set the time in the speedometer.
Fill up tank with fresh fuel.
Check motorcycle as before each start (see driving instructions).
Take a short, careful test ride first.
NOTE: Before you put your motorcycle away for the winter, you should check all parts for their function and wear. Should any service
jobs, repairs, or any refitting be necessary, you should have them carried out during the off-season (lower workload at mechanics' shops).
This way, you can avoid the long waiting times at your shop at the beginning of the next biking season.
ENGLISH
If using a power washer, do not point the water jet at the electric components, plugs, cables, bearings, carburetor, etc. The high pressure will cause water to penetrate into the components and can cause them to malfunction or lead to premature wear.
43
TECHNICAL SPECIFICATIONS – CHASSIS 125 EXC 2010 »
ENGLISH
44
CHASSIS
125 EXC
Frame
Central chrome-moly-steel frame
Fork
125 EXC
WP Suspension – 4860 MXMA PA (Open Cartridge, Preload Adjuster)
Wheel travel front/rear
300/335 mm (11.8/13.2 in)
Rear suspension
WP Suspension – 5018 PDS DCC (Double Compression Control)
Front brake
Disc brake with wave carbon-steel brake disc Ø 260 mm (10.2 in), brake caliper floated
Rear brake
Disc brake with wave carbon-steel brake disc Ø 220 mm (8.7 in), brake caliper floated
Brake discs
Wear limit 2.50 mm (0.1 in) front / 3.50 mm (0.14 in) rear
Front tires *
125 EXC
90/90-21 54M Metzeler MCE 6 Days Extreme
Air pressure offroad
1.0 bar (14 psi)
Air pressure road driver only
1.5 bar (21 psi)
Rear tires *
125 EXC
120/90-18 65M
Air pressure offroad
1.0 bar (14 psi)
Air pressure road driver only
2.0 bar (28 psi)
Fuel tank capacity
125 EXC
9.5 liters (2.5 US gallons), 2 liters (0.52 US gallone) reserve
Final drive ratio
125 EXC
14:42
Chain
5/8 x 1/4 "
Available final sprockets
38t, 40t, 42t, 45t, 48t, 49t, 50t, 51t, 52t
Bulbs
headlight
12V 35/35W Bilux (base Ba20d)
parking light
12V 5W (base W2.1x9.5d)
brake-rear light
LED
flasher light
12V 10W (base Ba15s)
Metzeler MCE 6 Days Extreme
Steering head angle
63°
Wheel base
1471 ± 10 mm (57.9 in ± 0.4 in)
Seat height, unloaded
985 mm (38.70 in)
Ground clearance, unloaded
390 mm (15.30 in)
Weight (without fuel)
125 EXC
97 kg (214 lbs)
* further tire releases are available on the Internet at www.ktm.com
TECHNICAL SPECIFICATIONS – CHASSIS 125 EXC 2010 »
STANDARD ADJUSTMENT – FORK
125 EXC
WP 4860 MXMA PA
14187E02
Compression adjuster
22 clicks
Rebound adjuster
22 clicks
Spring
432.505.00.040W
Preload Adjuster
2 turns
Air chamber length
110 mm (4.3 in)
Fork oil
SAE 5
STANDARD ADJUSTMENT – SHOCK ABSORBER
Compression adjuster Low Speed
ENGLISH
125 EXC
WP 5018 PDS DCC
12187E02
15 clicks
Compression adjuster High Speed 1.5 turns
Rebound adjuster
24 clicks
Spring
66-250
Spring preload
Static sag
7 mm (0.27 in)
35 mm ± 2 mm (1.38 in ± 0.08)
Riding sag
105 mm ± 5 mm (4.13 in ± 0.20)
45
TIGHTENING TORQUES – CHASSIS
Collar screw, front wheel spindle
Brake caliper, front
Brake disks
Screw steering head
Lower Screw steering head
Clamping screws, upper fork bridge (machined fork bridge)
Clamping screws, lower fork bridge (machined fork bridge)
Clamping screws, upper steering stem
Clamping screws, upper fork bridge (forged fork bridge)
Clamping screws, lower fork bridge (forged fork bridge)
Clamping screws, fork stubs
Collar nut, rear wheel spindle
Hexagon nut, swing arm bolt
Hexagon collar screw, handlebar clamp
Allan head screw, handlebar support
Shock absorber, top
Shock absorber, bottom
Flat-head screws for subframe
Collared nuts for rear sprocket screws
Flat-head screw for side stand
Ball joint for push rod foot brake cylinder
Engine mounting bolt
Engine brace
Screw adjusting ring spring preload shock absorber
Spoke nipple
Other screws on chassis
Other collar nuts on chassis
M24x1.5
M8 (10.9)
M6 (10.9)
M20x1,5
M20x1,5
M8 (10.9)
M8 (10.9)
M8 (10.9)
M8 (10.9)
M8 (10.9)
M8 (10.9)
M20x1.5
M16x1.5
M8 (10.9)
M10 (10.9)
M12 (10.9)
M12 (10.9)
M8 (10.9)
M8 (10.9)
M8 (10.9)
M6 (10.9)
M10 (10.9)
M8 (10.9)
M6
M4.5 / M5
M6
M8
M10
M6
M8
M10
45 Nm
Loctite 243
14 Nm
10 Nm
Loctite 243
17 Nm
12 Nm
Loctite 243
20 Nm
15 Nm
15 Nm
80 Nm
100 Nm
20 Nm
Loctite 243
Loctite 243
Loctite 243
Loctite 243
Loctite 243
Loctite 243
10 Nm
60 Nm
33 Nm
8 Nm
5 Nm
10 Nm
25 Nm
45 Nm
15 Nm
30 Nm
50 Nm
+ 25 Nm
+ 60 Nm
+ 17 Nm
+
+
+
+
+
+
40
80
80
35
35
40
Nm
Nm
Nm
Nm
Nm
Nm
TECHNICAL SPECIFICATIONS – ENGINE 125 EXC 2010 »
ENGINE
125 EXC
Design
Liquid-cooled, single-cylinder, two-stroke engine with intake and exhaust control
Piston displacement
124.8 ccm
Bore / stroke
54 / 54.5 mm (2.126 / 2.145 in)
Fuel
unleaded fuel with at least RON 95 (USA = Premium RON 91), mixed with high grade two stroke oil
Oil / gasoline ratio
1:60 when using high grade, two- stroke oil (Motorex Cross Power 2T).
When in doubt, please contact your importer
Crankshaft bearing
1 deep-groove ball bearing / 1 cylinder roller bearing
Connecting rod bearing
needle bearing
Piston pin bearing
needle bearing
Piston
cast aluminum
Piston ring
Dimension „X“
ENGLISH
46
2 half keystone rings
(upper edge pistonupper edge cylinder)
0,0 mm +0.10 mm
Ignition timing
1.4 mm (0.055 in) (16.5°) BTDC
Spark plug
NGK BR9 ECMVX
Electrode gap
Dimension „Z“
0.60 mm (0.023 in)
(height of the
control flap)
43.5 mm (1.68 in)
Primary drive
straight cut spur gears, primary ratio 23:73
Clutch
multiple disc clutch in oil bath, hydraulically operated (Motorex hydraulic fluid 75)
Transmission
6 speed, claw actuated
Gear ratio
1st gear
12 : 33 „1G33“
2nd gear
„2S15“
15 : 31 „2G31“
3rd gear
„3S17H“ 17 : 28 „3S28H“
4th gear
„4S19H“ 19 : 26 „4S26“
5th gear
„5S21“
21 : 25 „5S25“
6th gear
„6G20“
20 : 20 „6G20“
Gear lubrication
0,7 liter Motorex Top Speed 4T 15W50
Available chain sprockets
13t / 14t for chain 5/8 x 1/4"
Coolant
1.2 litres, 50% anti freeze, 50% distilled water, at least -25 °C (-13 °F)
Ignition system
KOKUSAN 2K-3
Generator output
12V / 110 W
Carburetor
Keihin PWK 36S AG flat-slide carburetor, carburetor setting see table
Air-filter
wet foam type air filter insert
TECHNICAL SPECIFICATIONS – ENGINE 125 EXC 2010 »
BASIC CARBURETOR SETTING
125 EXC 5 KW
Carburetor
Keihin PWK 36S AG
Carburetor setting mark
FK0191
Main jet
140 (168/170/172)
Idling jet
38x38 (45/48)
Starting jet
50 (85)
Jet needle
R84I (NOZE/NOZF)
Throttle valve
7
Air adjustment srew open
2.5 (1)
Performance restrictor
–
TIGHTENING TORQUES - ENGINE
Flange bolts - cylinder-head
Nuts-cylinder base
Flywheel collar nut
Nut for primary sprocket
Nut for inner clutch hub
Collar screws für clutch springs
Collar screw for clutch slave cylinder
Special screw for locating drum shifting
Oil drain plug
Oil drain plug clutch cover
Drain plug for water pump cover
Collar screw for water pump cover
Water pump wheel
Crankcase and clutch cover bolts
Collar screws for ignition cover
Collar screws for exhaust flange
Spark plug
Collar screws for ignition system
Collar screw for kickstarter lever
Collar screw für shifting lever
Other screws
M7
M8
M12x1
M16x1,5 links
M18x1,5
M6
M6
M8
M12x1,5
M10x1
M10x1
M6
M5
M6
M5
M5
M14x1,25
M5
M8
M6 (10.9)
M5
M6
M8
M 10
18 Nm
30 Nm
60 Nm
Loctite 243
Loctite 243
10 Nm
Loctite 243
Loctite 243
20 Nm
15 Nm
15 Nm
Loctite 243
Loctite 243
10 Nm
5 Nm
6 Nm
25 Nm
Loctite 243
Loctite 243
Loctite 243
6 Nm
10 Nm
25 Nm
45 Nm
+ 130 Nm
+ 130 Nm
+ 10 Nm
+ 25 Nm
+ 10 Nm
+ 6 Nm
+ 6 Nm
+ 25 Nm
+ 14 Nm
ENGLISH
Needle position from top 5 (4)
47
SCHALTPLAN » WIRING DIAGRAMM
headlight
right front flasher
C_CX/2
C_CZ/3
C_DB/4
C_CW/2
C_CY/3
C_DA/4
1
1
3
4
2
br-bl
ye-re
br
wh
bu
re
gn
C_BA1/1
C_BF1/1
high/low beam switch
horn button stop button
C_BC/6
br
2
flasher relay
G
2 1
C_AH2/2
ye-bl
flasher switch
C_BG/3
1
C_BT/3
3 2
ye-re
br
2
3
4
1
br
2
1
wh
bl
br
wh-gn
2
C_CX/2
1
wh
ye
C_CE/4
5
rear brake
light switch
C_AK/2
C_AH/2
C_CA/4
6 4
capacitor
C_AL/2
3
1
2
C_BG1/3
ye
re
C_AC/6
horn
C_BV/2
C_BO/2
1
br
pu
bl
1 2
wh
1
C_AT/2
1
2
2.2 2.1
C_BV/2
C_BS/2
right rear flasher
U
regulator-rectifier
C_BG/3
re
ye-re
2
C_EH/1
wh
3
br
handle bar switch
(optional)
3
bl
bl
br
1
2
2
speed sensor
v
2
2
C_CR/1
C_AJ1/3
pu
bl
3
C_CR/1
1
rear light/
brake light
br
4
C_CU/4
C_AN/4
br
C_DI/2
left rear flasher
licence plate
lamp
ye
ye-bl
gr
br
gr-bl
C_EI/1
ignition curve selector
pu
1
2
br
ye-bl
4 14
G
wh
1
2
3
C_CX1/2
bl
bu
6 11 10
bl
7
re
5
3
generator
br
C_CW/2
C_AJ/3
C_CW1/2
2
gn
2
ye
main harness 548.11.075.350
CDI harness 548.39.032.300
wh-gn
or
ye-re
ye-re
or
1
C_BU/18
pick up
re-wh
1
1
2
wh
br
br
pu
4
2
3
1
C_BA/1
ignition coil
pu
wiring diagram
re-bl
bu
C_AK1/2
ye-re
ye-re
bl-wh
ye
gn
br
re
1
C_CX2/2
wh-gn
C_CW2/2
C_BP/4
2
C_DG/4
C_CX3/2
C_AH1/2
C_CW3/2
125/200/250 EXC EU 2009
125/250 EXC
EU/EXC
Six Days 2009
125 EXC
EU 2010
200 EXC AUS 2009
I
or
gn
re-bl
D
ye-bl
re-wh
C
driving light lamp
left front flasher
front brake
light switch
br
br
br
bu-wh
C_BF/1
bu-wh
flasher control lamp
position light
bu
ENGLISH
48
multi-func.-digital-speedometer
SCHALTPLAN » WIRING DIAGRAMM
l ig h t sw i t ch
high/low beam switch
horn button
re
br
HORN
cable
c olor
bu
ye gn
wh
L I G HT O F F
OFF
ENGLISH
cable
c o lo r
P.LIGHT
LO
HI
P.LIGHT
49
brake light switch
cable
h arne ss
cable
switch
flasher switch
gnye
wh
bl
bl
cable
h a rn es s
or
pu
TURN L
TURN R
pushed
OFF
un pus he d
stop switch
yecable
bl
h arne ss
yecable
switch
bl
start button
br
br
cable
switch
START
u npu sh ed
pushed
u n push e d
re-
ye-
wh
re
bl
SCHALTPLAN » WIRING DIAGRAMM
ENGLISH
Battery
Capacitor
Cooling fan
Driving light lamp
Flasher control lamp
Flasher relay
Flasher switch
Front brake switch
Generator
ENGLISH
50
DEUTSCH
Batterie
Kondensator
Lüftermotor
Fernlichtkontrolle
Blinkerkontrolle
Blinkerrelais
Blinkerschalter
vorderer Bremslichtschalter
Generator
Handle bar switch for multi-func.-digital-speedometer Lenkerschalter für Kombiinstrument
Headlight
Scheinwerfer
High / low beam switch
Auf-Abblendschalter
Horn
Hupe
Horn button
Horntaster
Ignition coil
Zündspule
Ignition curve selector
Stecker für Zündkurve
Ignition switch
Zündschloss
Left front flasher
linker vorderer Blinker
Left rear flasher
linker hinterer Blinker
Licence plate lamp
Kennzeichenbeleuchtung
Light switch
Lichtschalter
Multi-func.-digital-speedometer
Multifunktionsdigitaltacho
Pick up
Impulsgeber
Position light
Standlicht
Rear brake light switch
hinterer Bremslichtschalter
Rear light / brakelight
hinteres Begrenzungslicht / Bremslicht
Regulator-rectifier
Regelgleichrichter
Right front flasher
rechter vorderer Blinker
Right rear flasher
Rechter hinterer Blinker
Speed sensor
Geschwindigkeitssensor
Start button
Starttaster
Start relay
Startrelais
Starter motor
Startermotor
Stop button
Not-Aus-Schalter
Faro anteriore
Commutatore abbagliante/anabbagliante
Avvisatore acustico
Interruttore avvisatore acustico
Bobina d‘accensione
Connettori curva d’accensione
Interruttore d‘accensione
Indicatore ant. sx
Indicatore post. sx
Luce targa
Interruttore luci
Tachimetro digitale multifunzione
Pick up
Luce di posizione
Interruttore luce post. di stop
Luce post. di posizione/stop
Regolatore-raddrizzatore
Indicatore ant. dx
Indicatore post. dx
Sensore velocità
Pulsante d´avviamento
Relè d‘avviamento
Motorino d‘avviamento
Interrutore di aresto dèmergenza
CABLE COLOURS
bl: black
br: brown
bu: blue
gn: green
gr: grey
or: orange
pi: pink
pu: purple
re: red
wh: white
ye: yellow
CAVO COLORATO
bl: nero
br: marrone
bu: blu
gn: verde
gr: grigio
or: arancione
pi: rosa
pu: violetto
re: rosso
wh: bianco
ye: giallo
2T-Rac10
KABELFARBEN
bl: schwarz
br: braun
bu: blau
gn: grün
gr: grau
or: orange
pi: rosa
pu: violett
re: rot
wh: weiß
ye: gelb
ITALIANO
Batteria
Condensatore
Motorino ventola
spia abbagliante
spia lampeggiatori
Relè indicatori
Interruttore indicatori di direzione
Interruttore luce ant. di stop
Generatore
Interruttore sul manubrio per tachimetro multifunzione
ENGLISH
Battery
Capacitor
Cooling fan
Driving light lamp
Flasher relay
Flasher control lamp
Flasher switch
Front brake light switch
Generator
Handle bar switch for multi-func.-digital-speedometer
Headlight
High / low beam switch
Horn
Horn button
Ignition coil
Ignition curve selector
Ignition switch
Left front flasher
Left rear flasher
Licence plate lamp
Light switch
Multi-func.-digital-speedometer
Pick up
Position light
Rear brake light switch
Rear light / brakelight
Regulator-rectifier
Right front flasher
Right rear flasher
Speed sensor
Start button
Start relay
Starter motor
Stop button
FRANCAIS
ESPANOL
Batterie
Batería
Condensateur
Condensador
Ventilateur
Motor del ventilador
temoin feu route
lampara aviso luces largas
Relais de clignotants
Relé de la luz intermitente
temoin de clignoteur
lampara aviso intermitentes
buton de clignotants
Inerruptor de la luz intermitente
Contacteur de frein avant
Interruptor de luz del freno delantero
Alternateur
Generador
Contacteur au guidon pour ordinateur de bord Interruptor de manillar para instrumento combinado
Phare
Faro
Contacteur code/phare
Interruptor de encender/apagar la luz larga
Avertisseur sonore
Cláxon
Bouton d’avertisseur sonore
Interruptor del claxon
Bobine d’allumage
Bobina de encendido
Prise courbe d’allumage
Conexión de la curva de encendido
Contacteur d’allumage
Cerradura de encendido
Clignotant avant gauche
Luz intermitente izquierda delantera
Clignotant arrière gauche
Luz intermitente izquierda trasera
Eclairage de plaque
Luz de la matricula
Contacteur d’electrique
Interruptor de luces
Ordinateur de bord
Velocímetro digital multifuncional
Capteur d’allumage
Generador de impulsos
feu de position
luz de posicion
Contacteur de frein arrière
Interruptor de luz del freno trasero
Feu rouge/stop
Luces de parqueo traseras /luces de freno
Régulateur/redresseur
Regulador rectificador
Clignotant avant droit
Luz intermitente derecha delantera
Clignotant arrière droit
Luz intermitente derecha trasera
Capteur de vitesse
Sensor de velocidad
bouton de démarrage
botón de arranque
Relais de démarreur
Relé del arranque
Démarreur
Motor de arranque eléctrico
bouton d´arrêt d`urgence
interruptor de parada de emergencia
CABLE COLOURS
bl: black
br: brown
bu: blue
gn : green
gr: grey
or: orange
pi: pink
pu: purple
re: red
wh: white
ye: yellow
COULEUR DE CABLE
bl: noir
br: brun
bu: bleu
gn: vert
gr: gris
or: orange
pi: rose
pu: violet
re: rouge
wh: blanc
ye: jaune
2T-Rac10
COLOR DE CABLE
bl: negro
br: marron
bu: azul
gn: verde
gr: gris
or: naranja
pi: rosado
pu: violeta
re: rojo
wh: blanco
ye: amarillo
ENGLISH
SCHALTPLAN » WIRING DIAGRAMM
51
VERGASERTABELLE » CARBURETOR TABLE
VERGASERREGULIERUNG
CARBURETOR SETTING
125 EXC 2010
KEIHIN PWK 36S AG
MEERESHÖHE
ALTITUDE
TEMPERATUR - 20°C bis -7°C - 6°C bis 5°C
TEMPERATURE
-2°F to 20°F 19°F to 41°F
6°C bis 15°C
16°C bis 24°C 25°C bis 36°C 37°C bis 49°C
42°F to 60°F
61°F to 78°F
79°F to 98°F
99°F to 120°F
LSO
LD
NADEL
POS
HD
ASO
IJ
NEEDLE
POS
MJ
1
45
NOZE
4
170
1,5
45
NOZE
3
168
1,5
42
NOZF
3
165
2
40
NOZF
2
162
2
38
NOZG
2
160
LSO
LD
NADEL
POS
HD
ASO
IJ
NEEDLE
POS
MJ
1
48
NOZE
4
170
1
45
NOZE
4
170
1,5
45
NOZE
3
168
1,5
42
NOZF
3
165
2
40
NOZF
2
162
2
38
NOZG
2
160
LSO
LD
NADEL
POS
HD
ASO
IJ
NEEDLE
POS
MJ
0,75
48
NOZD
4
172
1
48
NOZE
4
170
1
45
NOZE
4
170
1,5
45
NOZE
3
168
1,5
42
NOZF
3
165
2
40
NOZF
2
162
LSO
LD
NADEL
POS
HD
ASO
IJ
NEEDLE
POS
MJ
0,75
50
NOZD
5
175
0,75
48
NOZD
4
172
1
48
NOZE
4
170
1
45
NOZE
4
170
1,5
45
NOZE
3
168
1,5
42
NOZF
3
165
LSO
LD
NADEL
Meeresniveau POS
Sea level
HD
ASO
IJ
NEEDLE
POS
MJ
0,75
52
NOZC
5
178
0,75
50
NOZD
5
175
0,75
48
NOZD
4
172
1
48
NOZE
4
170
1
45
NOZE
4
170
1,5
45
NOZE
3
168
3000 m
10000 ft
2301 m
7501 ft
ENGLISH
2300 m
7500 ft
1501 m
5001 ft
1500 m
5000 ft
52
751 m
2501 ft
750 m
2500 ft
301 m
1001 ft
300 m
1000 ft
LSO
LD
POS
HD
=
=
=
=
Luftregulierschraube offen
Leerlaufdüse
Nadel Clip Position von oben
Hauptdüse
NICHT FÜR STRASSENBETRIEB
NICHT FÜR SANDSTRECKEN
Kraftstoff: Super Bleifrei ROZ 95
1
3
5
2
4
ASO
IJ
POS
MJ
=
=
=
=
Air screw open from fully-seated
Idling jet
Needle clip position from top
Main jet
NOT FOR HIGHWAY USE AND SAND TRACKS
Fuel: unleaded fuel with at least RON 95
USA = Premium PON 91
EXC Modelle: Die oben angeführten Vergaserregulierungen gelten nur für entdrosselte Motorräder.
Um die volle Motorleistung zu erhalten, sind neben der Vergaserregulierung auch noch andere Maßnahmen erforderlich, Ihr KTM Händler hilft Ihnen gerne.
WENN SIE ÄNDERUNGEN AM MOTORRAD VORNEHMEN, GEHT DIE STRASSENZULASSUNG VERLOREN, DER BETRIEB AUF ÖFFENTLICHEN STRASSEN IST DANN VERBOTEN UND STRAFBAR! AUSSERDEM ERLISCHT DER VERSICHERUNGSSCHUTZ!
EXC models: The carburetor adjustments described above only apply to dethrottled motorcycles. Other measures will be required in addition to the carburetor adjustment for full engine performance. Your KTM dealer will be pleased to assist you.
CHANGES TO YOUR MOTORCYCLE WILL CAUSE YOU TO LOSE YOUR ROAD APPROVAL. IT WILL BE ILLEGAL TO OPERATE THE MOTORCYCLE ON
PUBLIC ROADS! YOUR INSURANCE COVERAGE WILL ALSO BE CANCELLED!
Modelli EXC: Le tarature suindicate del carburatore valgono solo per motociclette potenziate. Per ottenere la piena potenza del motore sono richieste,
oltre alla taratura del carburatore, anche altre misure. Il vostro concessionario KTM sarà sempre disposto ad aiutarvi.
MODIFICHE APPORTATE ALLA MOTOCICLETTA DETERMINANO LA PERDITA DELL'OMOLOGAZIONE STRADALE, L'IMPIEGO SU STRADE PUBBLICHE DI CONSEGUENZA È VIETATO E PASSIBILE DI PENA! INOLTRE DECADE LA COPERTURA ASSICURATIVA!
Modèles EXC : Les réglages de carburateur décrits ci-dessus valent seulement pour des machines débridées. Pour obtenir la pleine puissance, d'autres
mesures sont nécessaires en plus de ces réglages. Les agents KTM connaissent ces mesures.
QUAND ON EFFECTUE DES TRANSFORMATIONS SUR UNE MOTO, L'HOMOLOGATION N'EST PLUS VALABLE, L'UTILISATION SUR LA VOIE PUBLIQUE EST INTERDITE ET TOMBE SOUS LE COUP DE LA LOI. DE PLUS LA COUVERTURE D'ASSURANCE DISPARAÎT.
Modelos EXC: Los reglajes del carburador arriba indicados son válidos solamente para motocicletas sin reducción. Para alcanzar la potencia plena del
motor, además de la regulación del carburador son necesarias también otras medidas. Su distribuidor KTM le ayudará con todo gusto.
SI EFECTÚA CAMBIOS EN LA MOTOCICLETA, SE PIERDE EL PERMISO DE CIRCULACIÓN EN CARRETERAS; LA CIRCULACIÓN EN VÍAS PÚBLICAS
QUEDA ENTONCES PROHIBIDA Y ES PUNIBLE. ¡ADEMÁS CADUCA LA PROTECCIÓN DEL SEGURO!
53
ENGLISH
INDEX »
ENGLISH
54
Page
Adapting the chain guide to the number of rear sprocket teeth . .26
Adjusting the engine characteristic via the ignition curve . . .41
Basic suspension setup for the weight of the driver . . . . . . .23
Bleeding the cooling system . . . . . . . . . . . . . . . . . . . . . . .37
Bleeding the hydraulic clutch . . . . . . . . . . . . . . . . . . . . . .39
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Breather plug front fork . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Carburetor adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Carburetor table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
Chain maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Chain wear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Changing the basic position of the foot brake pedal . . . . . . .31
Changing the basic position of the hand brake lever . . . . . .29
Changing the original position of the clutch lever . . . . . . . . .38
Changing the spring preload on the telescopic fork . . . . . . .24
Changing the spring preloading of the shock absorber . . . . .22
Changing the transmission oil . . . . . . . . . . . . . . . . . . . . . .42
Chassis number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Check chain tension . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Check transmission oil level . . . . . . . . . . . . . . . . . . . . . . .42
Checking and adjusting the steering head bearing . . . . . . . .25
Checking spoke tension . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Checking the basic setup of the telescopic fork . . . . . . . . . .24
Checking the brake fluid level - front brake . . . . . . . . . . . . .29
Checking the coolant level . . . . . . . . . . . . . . . . . . . . . . . . .37
Checking the float level . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Checking the front brake pads . . . . . . . . . . . . . . . . . . . . . .29
Checking the oil level of the hydraulic clutch . . . . . . . . . . .38
Checking the rear brake fluid level . . . . . . . . . . . . . . . . . . .30
Checking the rear brake pads . . . . . . . . . . . . . . . . . . . . . . .31
Choke lever on the handlebar . . . . . . . . . . . . . . . . . . . . . . .12
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Cleaning the air filter . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Cleaning the dust sleeves of the telescopic fork . . . . . . . . . .24
Clutch lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Combination switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Compression damping of fork . . . . . . . . . . . . . . . . . . . . . . .14
Compression damping of shock absorber . . . . . . . . . . . . . . .15
Conservation for winter operation . . . . . . . . . . . . . . . . . . . .43
Cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Correct chain tension . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Determining the riding sag of the shock absorber . . . . . . . . .23
Determining the static sag of the shock absorber . . . . . . . . .23
Dismounting and mounting the front wheel . . . . . . . . . . . . .32
Dismounting and mounting the rear wheel . . . . . . . . . . . . .33
Draining the float chamber of the carburetor . . . . . . . . . . . .41
Driving instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Electronic speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Engine number, engine type . . . . . . . . . . . . . . . . . . . . . . . .5
Exhaust system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Filler cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Flasher switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Foot brake pedal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Fuel tap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
General information about KTM disc brakes . . . . . . . . . . . .28
General tips and warnings for starting the motorcycle . . . . . .16
Hand brake lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
How to change the handlebar position . . . . . . . . . . . . . . . .25
Indicator lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Instructions for your first ride . . . . . . . . . . . . . . . . . . . . . . .16
Kickstarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Maintenance work on chassis and engine . . . . . . . .
Operation instruments . . . . . . . . . . . . . . . . . . . . . .
Periodic maintenance schedule . . . . . . . . . . . . . . .
Pivot bearing . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rebound damping of fork . . . . . . . . . . . . . . . . . . .
Rebound damping of shock absorber . . . . . . . . . . .
Refilling the front brake fluid reservoir . . . . . . . . . .
Refilling the rear brake fluid reservoir . . . . . . . . . . .
Refueling, fuel . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing the battery of the digital speedometer . . .
Replacing the front brake pads . . . . . . . . . . . . . . .
Replacing the headlight lamp/parking light lamp . . .
Replacing the rear brake pads . . . . . . . . . . . . . . . .
Running in . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Serial number locations . . . . . . . . . . . . . . . . . . . . .
Shift lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shifting/Riding . . . . . . . . . . . . . . . . . . . . . . . . . . .
Side stand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spring preload of the fork . . . . . . . . . . . . . . . . . . .
Starting off . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting when the engine is cold . . . . . . . . . . . . . .
Starting when the engine is warm . . . . . . . . . . . . . .
Steering lock . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stopping and parking . . . . . . . . . . . . . . . . . . . . . .
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Specifications – Chassis 125 EXC 2010
Technical Specifications – Engine 125 EXC 2010 .
Tires, air pressure . . . . . . . . . . . . . . . . . . . . . . . . .
Use after a period of storage . . . . . . . . . . . . . . . . .
Wiring Diagramm . . . . . . . . . . . . . . . . . . . . . . . . .
What to do when the engine is „flooded“ . . . . . . . .
What you should check before each start . . . . . . . .
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Page
. .22
. . .5
. .20
. .22
. .14
. .15
. .29
. .30
. .19
. .34
. .30
. .34
. .31
. .16
. . .5
. .13
. .19
. .13
. .14
. .18
. .18
. .18
. .13
. .19
. .43
. .44
. .46
. .33
. .43
. .49
. .18
. .17
OWNER’S MANUAL 2010
125 EXC EU
*3211483en*
3211483en
3211483en
1/2009
FOTO: MITTERBAUER
KTM Group Partner
KTM-Sportmotorcycle AG
A–5230 Mattighofen
www.ktm.com