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SERIAL NUMBER LOCATIONS . . . . . . . . . . . . . . . . . . . .5
Chassis number . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Engine number, engine type . . . . . . . . . . . . . . . . . . . .5
OPERATION INSTRUMENTS . . . . . . . . . . . . . . . . . . . . .5
Clutch lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Hand brake lever . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Short circuit button . . . . . . . . . . . . . . . . . . . . . . . . . .6
Filler cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Fuel tap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Choke knob . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Shift lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Kickstarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Compression damping of fork . . . . . . . . . . . . . . . . . . .7
Rebound damping of fork . . . . . . . . . . . . . . . . . . . . . .7
Compression damping of shock absorber . . . . . . . . . . .8
Rebound damping of shock absorber . . . . . . . . . . . . . .8
GENERAL TIPS AND WARNINGS FOR STARTING THE
MOTORCYCLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Instructions for your first ride . . . . . . . . . . . . . . . . . . .9
Running in . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
DRIVING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . .10
What you should check before each start . . . . . . . . . .10
Starting when the engine is cold . . . . . . . . . . . . . . . .11
Starting when the engine is warm . . . . . . . . . . . . . . .11
What to do when the engine is „flooded“ . . . . . . . . . .11
Starting off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Shifting/Riding . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Stopping and parking . . . . . . . . . . . . . . . . . . . . . . . .12
Refueling, fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
PERIODIC MAINTENANCE SCHEDULE . . . . . . . . . . . . .13
MAINTENANCE WORK ON CHASSIS AND ENGINE . . . .15
Changing the spring preloading of the shock absorber
. .15
Pivot bearing . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Basic suspension setup for the weight of the driver . . .16
Checking the shock absorber and spring . . . . . . . . . .16
Determining the static sag of the shock absorber . . . .16
Determining the riding sag of the shock absorber . . . .16
Checking the basic setup of the telescopic fork . . . . .17
Changing the spring preload on the telescopic fork . . .17
Replacing fork springs . . . . . . . . . . . . . . . . . . . . . . .17
Breather plug front fork . . . . . . . . . . . . . . . . . . . . . .17
Cleaning the dust sleeves of the telescopic fork . . . . .17
Changing the fork offset (caster) . . . . . . . . . . . . . . .18
Checking and adjusting the steering head bearing . . .19
How to change the handlebar position . . . . . . . . . . . .19
Check chain tension . . . . . . . . . . . . . . . . . . . . . . . .20
Adapting the chain guide . . . . . . . . . . . . . . . . . . . . .20
Correct chain tension . . . . . . . . . . . . . . . . . . . . . . . .21
Chain maintenance . . . . . . . . . . . . . . . . . . . . . . . . .21
Chain wear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
General information about KTM disc brakes . . . . . . . .22
Adjusting the free travel at the hand brake lever . . . . .23
Checking the brake fluid level - front brake . . . . . . . .23
Refilling the front brake fluid reservoir . . . . . . . . . . .23
Checking the front brake pads . . . . . . . . . . . . . . . . .23
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Replacing the front brake pads . . . . . . . . . . . . . . . . .24
Checking the rear brake fluid level . . . . . . . . . . . . . .24
Refilling the rear brake fluid reservoir . . . . . . . . . . . .24
Changing the basic position of the foot brake pedal . .25
Checking the rear brake pads . . . . . . . . . . . . . . . . . .25
Replacing the rear brake pads . . . . . . . . . . . . . . . . .25
Dismounting and mounting the front wheel . . . . . . . .26
Dismounting and mounting the rear wheel . . . . . . . . .27
Tires, air pressure . . . . . . . . . . . . . . . . . . . . . . . . . .27
Checking spoke tension . . . . . . . . . . . . . . . . . . . . . .28
Cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Checking the coolant level . . . . . . . . . . . . . . . . . . . .28
Bleeding the cooling system . . . . . . . . . . . . . . . . . . .29
Cleaning the air filter . . . . . . . . . . . . . . . . . . . . . . . .29
Exhaust system . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Changing the original position of the clutch lever . . . .30
Changing the oil level of hydraulic clutch 125/144 SX 30
Changing the oil level of hydraulic clutch 250 SX . . . .30
Bleeding the hydraulic clutch . . . . . . . . . . . . . . . . .31
Carburetor adjustment . . . . . . . . . . . . . . . . . . . . . . .32
Draining the float chamber of the carburetor . . . . . . .33
Checking the float level . . . . . . . . . . . . . . . . . . . . . .33
Adjusting the engine characteristic via the ignition curve
. .34
Adjusting the engine characteristic via the auxiliary spring
.34
Check transmission oil level (125/144) . . . . . . . . . . .35
Changing the transmission oil (125/144) . . . . . . . . . .35
Check transmission oil level (250) . . . . . . . . . . . . . .35
Changing the transmission oil (250) . . . . . . . . . . . . . . .35
CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
CONSERVATION FOR WINTER OPERATION . . . . . . . . . .36
STORAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
TECHNICAL SPECIFICATIONS – CHASSIS . . . . . . . . . .37
TECHNICAL SPECIFICATIONS – ENGINE . . . . . . . . . . .39
Carburetor table 125 . . . . . . . . . . . . . . . . . . . . . . . . . .41
Carburetor table 144 . . . . . . . . . . . . . . . . . . . . . . . . . .42
Carburetor table 250 . . . . . . . . . . . . . . . . . . . . . . . . . .43
WIRUNG DIAGRAMM . . . . . . . . . . . . . . . . . . . . . . . . .44
INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46