Filter
Top Products
ENGLISH
44
TECHNICAL DATA – ENGINE »
TIGHTENING TORQUES – ENGINE 250/450 SX-F
Hexagon collar screw, engine case, clutch cover, ignition cover, water pump cover
M6 10 Nm
Hexagon collar screw, engine case, clutch case M7x1 14 Nm
Oil drain plug M12x1.5 20 Nm
Allen head plug, oil screen short (250 SX-F) M16x1.5 10 Nm oiled
Hexagon plug, oil screen long (250 SX-F) M20x1.5 15 Nm
Plug, oil screen (450 SX-F) M32x1,5 30 Nm oiled
Collar screw for oil filter cover (250 SX-F) M5 6 Nm
Collar screw for oil filter cover (450 SX-F) M4 6 Nm
Plug pressure valve M12x1,5 / M14x1,5 18 Nm
Hexagon collar screw/collar nut cylinder / cylinder head M6 10 Nm oiled
Cylinder head screw (250 SX-F) M10 40/50 Nm oiled
Collar nut cylinder head (450 SX-F) M10x1,25 10 Nm/30 Nm/50°
Hexagon collar screw, exhaust flange M6 Loctite 243 + 10 Nm
Valve cover screws M6 10 Nm
Hexagon nut, primary gear (250 SX-F) M18x1.5 left Loctite 243 + 150 Nm
Hexagon nut, primary gear (450 SX-F) M27x1 60 Nm
Nut for inner clutch hub (250 SX-F) M18x1.5 Loctite 243 + 120 Nm
Nut for inner clutch hub (450 SX-F) M18x1.5 Loctite 243 + 80 Nm
Hexagon collar screw, clutch spring M6 10 Nm
Allan head screw, shift roller locking piece M6 Loctite 243 + 10 Nm
Hexagon collar screw, locking lever M5 Loctite 243 + 6 Nm
Plug for chain tensioner M24x1.5 25 Nm
Hexagon collar screw, stator M5 Loctite 243 + 6 Nm
Hexagon collar screw, pulser coil M5 Loctite 243 + 6 Nm
Hexagon collar nut, flywheel (250 SX-F) M12x1 60 Nm
Flywheelscrew (450 SX-F) M10x1 80 Nm oiled
Cable retaining bracket (ignition) M6 Loctite 243 + 6 Nm
Allan head screw, kickstarter M8 Loctite 243 + 25 Nm
Hexagon collar screw, shift lever M6 Loctite 243 + 10 Nm
Hexagon screw, engine sprocket M10 Loctite 243 + 60 Nm
Spark plug M10 10-12 Nm
BASIC CARBURATOR SETTING
250 SX-F 450 SX-F
Type
Keihin FCR-MX 3925E Keihin FCR-MX 4125F
Main jet 175 185
Jet needle OBETP OBDTP
Idling jet 40 40
Main air jet 200 200
Idling air jet 100 100
Needle position 5
th
from top 4
th
from top
Starting jet 85 85
Mixture control screw open 1.25 1.5
Slide 15 15
Performance restrictor – –
Stop pump membrane 858 / 2.15 mm 858 / 2.15 mm
Hot start device 2.5 mm 2.5 mm