KTM 990 SUPER DUKE - Manual (Page 74)

TROUBLESHOOTING
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73
TROUBLE CAUSE REMEDY
Engine cranks but doesn’t start. Operating error
Blown fuse for the fuel pump
Clutch not attached to the fuel line
The plug and socket connector on
the wiring harness is oxidized
Error in the injection system
A gear is engaged and the side
stand is folded down
Pay attention to starting off information
(see driving instructions).
Replace the fuel pump fuse
Connect the clutch to the fuel line
Remove the panel and fuel tank, clean the plug and socket
connector and spray with contact spray
Visit an authorized KTM workshop
Switch to neutral gear
Engine will not reach full power Air filter/fuel filter heavily soiled
Error in the injection system
Have the air filter/fuel filter replaced at an authorized KTM
workshop
Visit an authorized KTM workshop
Engine overheats Insufficient cooling liquid
Radiator fins are extremely dirty
Foam forms in cooling system
Radiator hose is kinked or
damaged
Thermostat defective
Refill cooling liquid (see maintenace work), check cooling sys-
tem for leaks
Clean radiator with water jet
Replace cooling liquid, use antifreezer with brand name
Run the radiator hose correctly or replace
Have the thermostat checked (opening temperature 75°C,
167°F) or replaced; contact an authorized KTM workshop