8-3
TROUBLE
Engine has not enough
power
Engine revs not high and
running with four stroke
cycle
High rpm misfiring
Engine spluters into the
carburetor
Engine overheating
Emission of white smoke
(steam)
Water in transmission oil
Excessive oil escapes from
transmission breather tube
CAUSE
Reed paddles tensionless or
damaged, surface of reed valve
housing damaged
Wear
Carburetor overflows if level adjust
too high, float needle seating is
dirty or enlarged
Loose carburetor jets
Incorrect heat range spark plug or
low quality spark plug
Incorrect or faulty spark plug connector
Loose, corroded or non conductive
ignition socket connector
Lack of fuel
Spark plug with incorrect heat
value (Ignition by incandescence)
Engine takes air out of control
Insufficient liquid in cooling system
Cooling system not or insufficiently
bleeded
Radiator fins clogged
Frothing in cooling system
Pinched or kinked water hoses
Incorrect ignition timing because of
loose stator bolts
Incorrect dimension ,,X“
Cylinder head or O-ring of cylinder
head gasket leaks
Shaft seal ring of the water pump
defect
Excessive oil quantity in
transmission
REMEDY
Replace reed paddles or reed valve housing
Overhaul engine
Clean carburetor, if necessary replace float needle and adjust
level
Tighten jets
Refer to technical data section
Test and/or replace spark plug connectors correct type
Check and seal with silicon
Clean fuel pipes, examine tank aeration and clean
Fit correct spark plug
Check intake flange and carburettor if firmly setted
Top up coolant and bleed cooling system check cooling
system for leaks
Bleed cooling system (see operating instructions)
Clean radiator fins with water jet
Renew coolant using branded anti-freeze/anti-corrosive
Replace with correct routed hoses
Readjust to correct ignition timing specifications, secure bolts
properly with Loctite 243
Measure and adjust to correct specification
Check cylinder head, replace O-ring
Replace shaft seal ring of the water pump.
Correct transmission oil level
Содержание 85 SX 2004
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Страница 73: ...TROUBLE SHOOTING Repair manual KTM 85 SX Art No 3 206 008 E TROUBLE SHOOTING 85 SX 8 2 INDEX 8 1 8 ...
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Страница 87: ...WIRING DIAGRAMS Repair manual KTM 85 SX Art No 3 206 008 E WIRING DIAGRAM 85 SX 11 2 INDEX 11 1 11 ...