KTM 85 SX 17/14, Руководство пользователя

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19 TROUBLESHOOTING
78
Faults Possible cause Action
Engine turns but does not start Operating error
–
Carry out the start procedure. ( p. 20)
Motorcycle was out of use for a long
time and there is old fuel in the float
chamber
–
Empty the carburetor float chamber.
x
( p. 71)
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.
x
–
Adjust the ignition. x
Short circuit cable in wiring harness
frayed, kill switch defective
–
Check the kill switch. x
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. x
( p. 70)
Spark plug defective
–
Change the spark plug.
Ignition system defective
–
Check the ignition coil.
x
–
Check the spark plug connector.
x
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.
x
–
Adjust the ignition.
x
Engine has too little power Fuel feed interrupted
–
Check the fuel tank breather.
–
Clean the fuel tap.
–
Check/set the carburetor components.
Air filter is very dirty
–
Clean the air filter and air filter box.
x
( p. 42)
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.
x
( p. 43)
Fault in ignition system
–
Check the ignition system.
x
–
Adjust the ignition. x
Membrane or reed valve housing is
damaged
–
Check the membrane and reed valve housing.
Engine stalls or is popping into the
carburetor Lack of fuel
–
Turn tap handle
1
on the fuel tap to the ON
position. (Figure C00462-10 p. 12)
–
Refuel. ( p. 23)
Engine takes in bad air
–
Check intake flange and carburetor for tight-
ness.
The connector or ignition coil is loose
or oxidized
–
Clean the connector and treat it with contact
spray.
Engine overheats Too little coolant in cooling system
–
Check the cooling system for leaks.
–
Check the coolant level. ( p. 66)
Too little air stream
–
Switch off the engine when standing.
Radiator fins very dirty
–
Clean the radiator fins.
Foam formation in cooling system
–
Drain the coolant.
x
( p. 67)
–
Refill the coolant. x ( p. 67)