KTM 990 - Manual (Page 85)

TROUBLE SHOOTING
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TROUBLE CAUSE REMEDY
Engine cranks but doesn’t start. 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
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
The ignition curve for 80 octane is
activated
Have the air filter/fuel filter replaced at an authorized KTM
workshop
Visit an authorized KTM workshop
Activate the ignition curve for 95 octane, if fuel with at least
RON 95 (USA = Premium PON 91) is being used
Engine overheats Insufficient cooling liquid
Radiator fins are extremely dirty
Foam forms in cooling system
Radiator hose is kinked
or damaged
Blown fan fuse
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
Replace fuse FAN
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