KTM F8201T5 User Manual

20 TROUBLESHOOTING
124
Faults Possible cause Action
The engine does not turn when
the start button is pressed
Operating error – Carry out start procedure. ( p. 26)
12-V battery discharged –
Charge the 12-V battery. ( p. 101)
– Check the charging voltage.
– Check the open-circuit current.
– Check the stator winding of the alter-
nator.
Main fuse blown – Change the main fuse. ( p. 102)
Faulty starter relay – Check the starter relay.
Faulty starter motor – Check the starter motor.
Engine turns but does not start Quick release coupling not
joined
– Join quick release coupling.
Fuel screen in the quick release
coupling is clogged
– Change the fuel screen. ( p. 115)
Idle speed is not set correctly – Adjust the idle speed. ( p. 112)
Spark plug sooty or wet – Clean and dry the spark plug and spark
plug connector, or change if necessary.
Plug gap of spark plug too wide – Adjust plug gap.
Guideline
Spark plug electrode gap
1.0 mm (0.039 in)
Short-circuit cable in wiring
harness frayed, stop button
faulty
– Check the wiring harness. (visual
check)
– Check the electrical system.
Malfunction in the electronic
fuel injection
– Read out fault memory using the KTM
diagnostics tool.
Engine does not speed up Malfunction in the electronic
fuel injection
– Read out fault memory using the KTM
diagnostics tool.
Engine has too little power Air filter is very dirty – Clean the air filter and air filter box.
( p. 65)
Fuel filter is very dirty – Change the fuel filter.
Malfunction in the electronic
fuel injection
– Read out fault memory using the KTM
diagnostics tool.
Exhaust system leaks,
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. 68)
Valve clearance too little – Adjust the valve clearance.
Engine dies during the trip Lack of fuel – Refuel. ( p. 32)
Engine overheats Too little coolant in cooling sys-
tem
– Check the cooling system for leakage.
– Check the coolant level. ( p. 106)
Too little air stream – Switch off the engine when standing.
Radiator fins very dirty – Clean the radiator fins.
Foam formation in cooling sys-
tem
– Drain the coolant. ( p. 106)
– Refill with coolant. ( p. 107)
Bent radiator hose – Change the radiator hose.

KTM F8201T5 Specifications

General

Brand	KTM
Model	F8201T5
Category	Motorcycle
Language	English