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21 TECHNICAL DATA 106

Screw, retaining bracket of exhaust

control

M5 7 Nm (5.2 lbf ft) Loctite

2701™

Screw, stator M5 6 Nm (4.4 lbf ft) Loctite

243™

Screw, water pump impeller M5 6 Nm (4.4 lbf ft) Loctite

243™

Bleeder screw, cylinder head M6 10 Nm (7.4 lbf ft) –

Outer clutch cover M6 8 Nm (5.9 lbf ft) –

Screw, alternator cover M6 8 Nm (5.9 lbf ft) –

Screw, clutch slave cylinder M6 10 Nm (7.4 lbf ft) –

Screw, control flap, exhaust control M6 10 Nm (7.4 lbf ft) Loctite

243™

Screw, engine case M6 10 Nm (7.4 lbf ft) –

Screw, exhaust flange M6 8 Nm (5.9 lbf ft) –

Screw, gear oil level check M6 10 Nm (7.4 lbf ft) –

Screw, intake flange/reed valve housing M6 6 Nm (4.4 lbf ft) –

Screw, intermediate clutch cover M6 10 Nm (7.4 lbf ft) –

Screw, kick starter idler gear steel pin M6 10 Nm (7.4 lbf ft) Loctite

243™

Screw, kick starter stop plate M6 10 Nm (7.4 lbf ft) Loctite

243™

Screw, shift drum locating M6 10 Nm (7.4 lbf ft) Loctite

243™

Screw, shift lever M6 14 Nm (10.3 lbf ft) Loctite

243™

Screw, water pump cover M6 10 Nm (7.4 lbf ft) –

Screw, balancer shaft M8 30 Nm (22.1 lbf ft) Loctite

243™

Screw, cylinder head M8 27 Nm (19.9 lbf ft) –

Screw, kick starter M8 25 Nm (18.4 lbf ft) Loctite

2701™

Nut, cylinder base M10 35 Nm (25.8 lbf ft) –

Screw, drive chain engine sprocket M10 60 Nm (44.3 lbf ft) Loctite

2701™

Nut, rotor M12x1 60 Nm (44.3 lbf ft) –

Gear oil drain plug with magnet M12x1.5 20 Nm (14.8 lbf ft) –

Spark plug M14x1.25 25 Nm (18.4 lbf ft) –

Nut, inner clutch hub M18x1.5 100 Nm (73.8 lbf ft) Loctite

648™

Nut, primary gear M18LHx1.5 150 Nm (110.6 lbf ft) Loctite

648™

21.2.2 All XC models

Screw, inner membrane sheets EJOT DELTA PT

35x25 1 Nm (0.7 lbf ft) –

Screw, membrane support plate EJOT DELTA PT

30x12 1 Nm (0.7 lbf ft) –

Screw, outer membrane sheets EJOT DELTA PT

30x6 1 Nm (0.7 lbf ft) –

Screw, angle lever, exhaust control M5 6 Nm (4.4 lbf ft) Loctite

243™

Screw, bearing retainer M5 7 Nm (5.2 lbf ft) Loctite

243™

Screw, clutch spring retainer M5 6 Nm (4.4 lbf ft) –

Screw, crankshaft position sensor M5 6 Nm (4.4 lbf ft) Loctite

243™

Screw, exhaust control bearing support M5 6 Nm (4.4 lbf ft) Loctite

243™

Screw, exhaust control cap M5 5 Nm (3.7 lbf ft) –

Screw, exhaust control cover M5 4 Nm (3 lbf ft) Loctite

222™

Screw, locking lever M5 6 Nm (4.4 lbf ft) Loctite

243™

Screw, retaining bracket of exhaust

control

M5 7 Nm (5.2 lbf ft) Loctite

2701™

Screw, water pump impeller M5 6 Nm (4.4 lbf ft) Loctite

243™

Bleeder screw, cylinder head M6 10 Nm (7.4 lbf ft) –

Outer clutch cover M6 8 Nm (5.9 lbf ft) –

Screw, alternator cover M6 8 Nm (5.9 lbf ft) –

Screw, clutch slave cylinder M6 10 Nm (7.4 lbf ft) –

Screw, control flap, exhaust control M6 10 Nm (7.4 lbf ft) Loctite

243™

Screw, engine case M6 10 Nm (7.4 lbf ft) –

Screw, exhaust flange M6 8 Nm (5.9 lbf ft) –

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KTM 250 SX 2018 Specifications

General

Displacement	249 cm³
Bore x Stroke	66.4 mm x 72 mm
Starter	Kickstarter
Transmission	5-speed
Rear Suspension	WP shock absorber with linkage
Fuel Capacity	7.5 liters
Front Tire	80/100-21"
Rear Tire	110/90-19"
Ground Clearance	375 mm
Seat Height	960 mm
Engine Type	Single-cylinder, 2-stroke
Front Suspension	WP AER 48, USD fork
Front Brake	Disc brake
Rear Brake	Disc brake
Ignition	Digital CDI
Wheelbase	1485 mm
Frame	Central double-cradle-type frame
Fuel System	Carburetor