KTM 125 SX 2021 Owner's Manual page 6

TABLE OF CONTENTS
15 COOLING SYSTEM .................................... 102
15.1
15.2
15.3
15.4
15.5
15.6
15.7
15.8
15.9
16 TUNING THE ENGINE............................... 109
16.1
16.2
16.3
16.4
16.5
16.6
16.7
16.8
16.9
17 SERVICE WORK ON THE ENGINE .............. 116
17.1
17.2
17.3
17.4
18 CLEANING, CARE ..................................... 120
18.1
19 STORAGE ................................................. 122
19.1
19.2
20 TROUBLESHOOTING ................................ 124
21 TECHNICAL DATA..................................... 126
21.1
21.1.1
21.1.2
21.2
21.3
21.3.1
21.3.2
21.3.3
21.3.4
4
Cooling system .............................. 102
Radiator cover ............................... 102
Installing the radiator cover............. 102
Removing the radiator cover ............ 103
Checking the antifreeze and
coolant level .................................. 103
Checking the coolant level .............. 104
Draining the coolant ................... 105
Refilling with coolant .................. 106
Changing the coolant .................. 107
Checking throttle cable play ............ 109
Adjusting throttle cable play
Carburetor tuning........................... 110
Carburetor - idle setting ................. 112
Carburetor - adjusting the idle
speed ........................................ 113
Plug-in connector of ignition timing
map adjustment............................. 114
Changing the ignition timing map .... 114
Checking the basic position of the
shift lever...................................... 114
Adjusting the basic position of the
shift lever .................................. 115
Emptying the carburetor float
chamber .................................... 116
Checking the gear oil level .............. 117
Changing the gear oil .................. 117
Adding the gear oil ..................... 118
Cleaning the motorcycle ................. 120
Storage ......................................... 122
Preparing for use after storage......... 123
Engine .......................................... 126
All 125 models.......................... 126
150 SX ..................................... 126
Engine tightening torques ............... 127
Carburetor ..................................... 129
125 SX ..................................... 129
Carburetor tuning (125 SX)......... 129
Carburetor - basic setting for
sandy surfaces (All 125
models) .................................... 130
150 SX ..................................... 131
21.3.5
21.3.6
21.3.7
21.3.8
21.3.9
21.4 Capacities ..................................... 135
21.4.1
21.4.2
21.4.3
21.5 Chassis ......................................... 135
21.6 Electrical system............................ 136
21.7 Tires ............................................. 136
........ 109
21.8 Fork.............................................. 136
21.8.1
21.8.2
21.9 Shock absorber .............................. 137
21.9.1
21.9.2
21.10 Chassis tightening torques .............. 139
22 SUBSTANCES .......................................... 141
23 AUXILIARY SUBSTANCES ......................... 143
24 STANDARDS ............................................ 145
25 LIST OF ABBREVIATIONS.......................... 146
INDEX ............................................................. 147
Carburetor tuning (150 SX)......... 131
Basic carburetor setting for
sandy surfaces (150 SX)............. 132
125 XC US ............................... 133
Carburetor tuning (125 XC US) ... 133
Carburetor - basic setting for
sandy surfaces (All 125
models) .................................... 134
Gear oil..................................... 135
Coolant ..................................... 135
Fuel ......................................... 135
All SX models ............................ 136
125 XC US ............................... 137
All SX models ............................ 137
125 XC US ............................... 138