KTM 144 SX - Manual (Page 34)

ENGLISH
33
Draining the float chamber of the carburetor
Following every wet-cleaning procedure, the float chamber of the carburetor
should be drained in order to remove any water that may have penetrated into
it. Water in the float chamber leads to engine malfunction.
Make sure you do this while the engine is cold. Close the fuel tap, and place a
cloth under the carburetor, which is capable of absorbing the leaking fuel. Unscrew
the plug [1] and clean it with compressed air. Then, mount the plug together with
the gasket, open the fuel tap, and check the float chamber for leaks.
Fuel is easily flammable and toxic. When handling fuel, be sure to exercise
the utmost caution. Never perform any work on the fuel system near open
flames or burning cigarettes. Always allow the engine to cool off first.
Immediately clean up any fuel which may have been spilled. Materials satu-
rated with fuel are also easily flammable. In case you ingested fuel or fuel
splashed into your eyes, consult a doctor immediately.
Dispose of the fuel properly.
MAINTENANCE WORK ON CHASSIS AND ENGINE
»
Explanation of table - Example
Compared to the needle N1EH, the jet needle N1EJ is two steps leaner in
the range from the closed position of the throttle to 1/4 throttle. Otherwise,
there are no differences.
Pay attention to the correct needle designation when replacing the jet nee-
dle. detailed information on the type of jet needle for the respective models
can be found in the carburetor setting table.
JET NEEDLE
TYPE
144 SX
RANGE OF ACTION
RICHER LEANER
R1470H
R1471H
R1472H
JET NEEDLE
TYPE
125 SX / SXS
RANGE OF ACTION
RICHER LEANER
R1468D
R1469D
R1470D
R1471D
JET NEEDLE
TYPE
250 SX / SXS
RANGE OF ACTION
RICHER LEANER
N1EF
N1EG
N1EH
N1EI
N1EJ
Checking the float level *
Arrange the carburetor diagonally at about 60° so that the spring in the float
needle valve is not pressed together. In this position, the edge of the float
should be parallel with the float chamber sealing surface (see illustration).
60°
1