KTM 65 SX 1999, Руководство пользователя

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19 TROUBLESHOOTING
73
Faults Possible cause Action
Engine turns but does not start Operating error
–
Go through the steps of starting the engine.
( p. 16)
Motorcycle was out of use for a long
time and there is old fuel in the float
chamber
–
Empty the carburetor float chamber.
( p. 67)
Fuel feed interrupted
–
Check the fuel tank breather.
–
Clean the fuel tap.
–
Check/set the carburetor components.
Spark plug oily or wet
–
Clean and dry the spark plug, or change it if
necessary.
Electrode distance (plug gap) of spark
plug too wide
–
Adjust the plug gap.
Guideline
Spark plug electrode gap
0.60 mm (0.0236 in)
Fault in ignition system
–
Check the ignition system.
–
Adjust the ignition.
Short circuit cable in wiring harness
frayed, kill switch defective
–
Check the kill switch.
The connector or ignition coil is loose
or oxidized
–
Clean the plug-in connection and treat it with
contact spray.
Water in carburetor or jets blocked
–
Check/set the carburetor components.
Engine has no idle Idling jet blocked
–
Check/set the carburetor components.
Adjusting screws on carburetor dis-
torted
–
Carburetor - adjust the idle speed. ( p. 66)
Spark plug defective
–
Change spark plug.
Ignition system defective
–
Check the ignition coil.
–
Check the spark plug connector.
Engine does not speed up Carburetor running over because float
needle dirty or worn
–
Check/set the carburetor components.
Loose carburetor jets
–
Check/set the carburetor components.
Fault in ignition system
–
Check the ignition system.
–
Adjust the ignition.
Engine has too little power Fuel feed interrupted
–
Check the fuel tank breather.
–
Clean the fuel tap.
–
Check/set the carburetor components.
Air filter very dirty
–
Clean the air filter and air filter box.
( p. 38)
Exhaust system leaky, deformed or
too little glass fiber yarn filling in
main silencer
–
Check exhaust system for damage.
–
Change the glass fiber yarn filling of the main
silencer.
( p. 39)
Fault in ignition system
–
Check the ignition system.
–
Adjust the ignition.
Diaphragm or reed valve housing
damaged
–
Check the diaphragm and reed valve housing.
Noticeable wear
–
Overhaul the engine.
Engine stalls or is popping into the
carburetor Lack of fuel
–
Turn the knurled screw on the fuel tap all the
way counterclockwise.
–
Fill up with fuel. ( p. 19)
Engine takes in bad air
–
Check the intake flange and carburetor for
tightness.
The connector or ignition coil is loose
or oxidized
–
Clean the plug-in connection and treat it with
contact spray.
Engine overheats Too little coolant in cooling system
–
Check the cooling system for leakage.
–
Check the coolant level. ( p. 63)
Too little air stream
–
Switch off engine when standing.