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KTM
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125 SX EU
KTM 125 SX EU User Manual
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7
PREPARIN
G
FOR
USE
22
7.8
Preparing
for
riding
at
low
temperatures
or
in
snow
B00437-01
–
Mount
the
rain
cover
for
the
air
filter.
Rain
cover
for
air
filter
(59006021000)
Info
Follow
the
KTM
PowerParts
mounting
instructions.
–
Adjust
the
carburetor
jetting
and
setting.
Info
Your
authorized
KTM
workshop
can
recommend
the
right
carburetor
tuning.
23
25
Table of Contents
Table of Contents
4
1 Means of Representation
7
Symbols Used
7
Formats Used
7
2 Safety Advice
8
Use Definition - Intended Use
8
Degrees of Risk and Symbols
8
Tampering Warning
8
Safe Operation
9
Protective Clothing
9
Work Rules
9
Environment
9
Owner's Manual
9
3 Important Notes
10
Guarantee, Warranty
10
Operating and Auxiliary Substances
10
Spare Parts, Accessories
10
Service
10
Figures
10
Customer Service
10
4 View of Vehicle
11
View of Vehicle, Front Left (Example)
11
View of Vehicle, Rear Right (Example)
12
5 Serial Numbers
13
Chassis Number
13
Type Label
13
Engine Number
13
Fork Part Number
13
Shock Absorber Part Number
13
6 Controls
14
Clutch Lever
14
Hand Brake Lever
14
Throttle Grip
14
Kill Switch
14
Electric Starter Button (250/300 XC)
15
Opening the Filler Cap
15
Closing the Filler Cap
16
Fuel Tap (All SX Models)
16
Fuel Tap (All XC Models)
17
Choke
17
Shift Lever
17
Kick Starter
18
Foot Brake Lever
18
Plug-In Stand (All SX Models)
18
Side Stand (All XC Models)
18
7 Preparing for Use
20
Advice on First Use
20
Running in the Engine
21
Preparing the Vehicle for Difficult Riding Conditions
21
Preparations for Riding on Dry Sand
21
Preparations for Riding on Wet Sand
22
Preparations for Riding on Wet and Muddy Surfaces
23
Preparations for Riding at High Temperatures and Low Speeds
23
Preparing for Riding at Low Temperatures or in Snow
24
8 Riding Instructions
25
Checks and Maintenance Work When Preparing for Use
25
Starting
25
Starting off
26
Shifting, Riding
26
Braking
26
Stopping, Parking
27
Transport
27
Refueling
28
9 Service Schedule
29
All SX Models
29
Service Work (as Additional Order)
30
All XC Models
30
Service Schedule
30
Service Work (as Additional Order)
31
10 Tuning the Chassis
32
Checking the Basic Chassis Setting with the Rider's Weight
32
Compression Damping of Shock Absorber
32
Adjusting the Low-Speed Compression Damping of the Shock Absorber
32
Adjusting the High-Speed Compression Damping of the Shock Absorber
33
Adjusting the Rebound Damping of the Shock Absorber
34
Measuring the Sag of the Unloaded Rear Wheel
35
Checking the Static Sag of the Shock Absorber
36
Checking the Riding Sag of the Shock Absorber
36
Adjusting the Spring Preload of the Shock Absorber
36
Adjusting the Riding Sag
37
Checking the Basic Setting of the Fork
39
Adjusting the Compression Damping of the Fork
39
Adjusting the Rebound Damping of the Fork
40
Handlebar Position
40
Adjusting the Handlebar Position
41
11 Service Work on the Chassis
42
Raising the Motorcycle with the Lift Stand
42
Removing the Motorcycle from the Lift Stand
42
Bleeding the Fork Legs
42
Cleaning the Dust Boots of the Fork Legs
43
Loosening the Fork Protection
43
Positioning the Fork Protection
44
Removing the Fork Legs
44
Installing the Fork Legs
44
11 Service Work on the Chassis
45
Default Chapter
45
Installing the Fork Protector
45
Removing the Fork Protector
45
Removing the Lower Triple Clamp
45
Installing the Lower Triple Clamp
46
Position the Brake Caliper and Mount and Tighten Screws 4 . Guideline
47
Screw, Front Brake Caliper M8
47
Adjusting the Play of the Steering Head Bearing
48
Checking the Play of the Steering Head Bearing
48
Finishing Work
48
Main Work
48
Guideline
48
Nm Loctite (18.4 Lbf Ft)
48
Preparatory Work
48
Raise the Motorcycle with the Lift Stand
48
Greasing the Steering Head Bearing
49
Installing the Start Number Plate
49
Nm (7.4 Lbf Ft)
49
Removing the Front Fender
49
Remaining Screws, Chassis M6
49
Removing the Start Number Plate
49
Installing the Front Fender
50
Removing the Shock Absorber
50
Installing the Shock Absorber
51
Mounting the Seat
51
Guideline Remaining Screws, Chassis
51
Removing the Seat
51
Installing the Air Filter Box Lid
52
Removing the Air Filter
52
Removing the Air Filter Box Lid
52
Cleaning the Air Filter and Air Filter Box
53
Installing the Air Filter
53
Removing the Main Silencer
54
Sealing the Air Filter Box
54
Securing the Air Filter Box Lid
54
Changing the Glass Fiber Yarn Filling of the Main Silencer
55
Installing the Main Silencer
55
Removing the Fuel Tank
55
Installing the Fuel Tank
56
Checking the Chain for Dirt
57
Cleaning the Chain
57
Adjusting the Chain Tension
58
Checking the Chain Tension
58
Checking the Chain, Rear Sprocket, Engine Sprocket and Chain Guide
59
Remaining Screws, Chassis M6
60
Finishing Work
60
Adjusting the Chain Guide
61
Checking the Frame
61
Checking the Swingarm
61
Checking the Routing of the Throttle Cable
61
Checking the Rubber Grip
63
Additionally Securing the Rubber Grip
63
Adjusting the Basic Position of the Clutch Lever
63
Checking/Correcting the Fluid Level of the Hydraulic Clutch
64
Changing the Hydraulic Clutch Fluid
65
Nm (7.4 Lbf Ft)
60
12 Brake System
67
Checking the Free Travel of the Hand Brake Lever
67
Adjusting the Basic Position of the Hand Brake Lever
67
Checking the Brake Discs
67
Checking the Front Brake Fluid Level
68
Adding Front Brake Fluid
68
Checking the Front Brake Linings
69
Changing the Front Brake Linings
69
Checking the Free Travel of Foot Brake Lever
71
Adjusting the Basic Position of the Foot Brake Lever
71
Checking the Rear Brake Fluid Level
72
Adding Brake Fluid for the Rear Brake
72
Checking the Rear Brake Linings
73
Changing the Rear Brake Linings
73
13 Wheels, Tires
75
Removing the Front Wheel
75
Installing the Front Wheel
75
Removing the Rear Wheel
76
Installing the Rear Wheel
76
Checking the Tire Condition
77
Checking the Tire Air Pressure
78
Checking the Spoke Tension
78
14 Electrical System
79
Removing the Battery
79
(250/300 XC)
79
Installing the Battery
79
Recharging the Battery
79
Changing the Main Fuse (250/300 XC)
80
15 Cooling System
82
Radiator Cover (All SX Models)
82
Removing the Radiator Cover (All SX Models)
82
Installing the Radiator Cover (All SX Models)
83
Checking the Antifreeze and Coolant Level
83
Checking the Coolant Level
84
Draining the Coolant
84
Refilling with Coolant
85
16 Tuning the Engine
87
Checking the Play in the Throttle Cable
87
Adjusting the Play in the Throttle Cable
87
Carburetor - Idle
87
Carburetor - Adjusting the Idle Speed
88
Emptying the Carburetor Float Chamber
89
Plug-In Connection, Ignition Timing Map
90
Changing the Ignition Curve
90
Checking the Basic Position of the Shift Lever
90
Adjusting the Basic Position of the Shift Lever
90
Engine Characteristic - Auxiliary Spring (All 250/300 Models)
91
Engine Characteristic - Setting the Auxiliary Spring (All 250/300 Models)
91
17 Service Work on the Engine
93
Checking the Gear Oil Level
93
Changing the Gear Oil
93
Draining the Gear Oil
94
Refilling with Gear Oil
94
Adding Gear Oil
95
18 Cleaning, Care
97
Cleaning the Motorcycle
97
19 Storage
98
Preparing for Use after Storage
98
20 Troubleshooting
99
21 Technical Data
101
Engine
101
Sx Eu, 125 Sx Usa
101
Sx Eu, 150 Sx Usa
101
Sx Eu, 250 Sx Usa
102
XC Usa
102
XC Eu/Usa
103
XC Eu/Usa
104
Engine Tightening Torques
104
All 125/150 Models
104
250 Sx Eu, 250 Sx Usa
105
250/300 XC
106
Carburetor
107
Sx Eu, 125 Sx Usa
107
Carburetor - Basic Setting for Sandy Surfaces (125 SX EU, 125 SX USA)
107
Carburetor Tuning (125 SX EU, 125 SX USA)
108
Sx Eu, 150 Sx Usa
109
Carburetor - Basic Setting for Sandy Surfaces (150 SX EU, 150 SX USA)
109
Carburetor Tuning (150 SX EU, 150 SX USA)
110
Sx Eu, 250 Sx Usa
111
Carburetor - Basic Setting for Sandy Surfaces (250 SX EU, 250 SX USA)
111
Carburetor Tuning (250 SX EU, 250 SX USA)
112
21.3.10 150 XC Usa
113
Carburetor Tuning (150 XC USA)
113
21.3.12 250 XC Eu/Usa
114
Carburetor Tuning (250 XC EU/USA)
115
21.3.14 300 XC Eu/Usa
116
Carburetor Tuning (300 XC EU/USA)
116
Capacities
117
Gear Oil
117
Coolant
117
Fuel
117
Chassis
117
Electrical System
118
Tires
118
Fork
119
Sx Eu, 150 Sx Eu
119
Sx Usa, 150 Sx Usa
119
Sx Eu
119
Sx Usa
120
XC Usa
120
250/300 XC
121
Shock Absorber
121
Sx Eu, 150 Sx Eu
121
Sx Usa, 150 Sx Usa
122
Sx Eu
122
Sx Usa
123
XC Usa
123
250/300 XC
124
Chassis Tightening Torques
124
22 Substances
126
23 Auxiliary Substances
129
24 Standards
131
Index
132
5
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KTM 125 SX EU Specifications
General
Brand
KTM
Model
125 SX EU
Category
Motorcycle
Language
English
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