KTM 450 EXC USA Motorcycle User Manual


 
MAINTENANCE WORK ON CHASSIS AND ENGINE 81
Guideline
Choke function deactivated The choke lever is pushed in to the stop. ( p. 23)
Idle speed 1,550… 1,650 rpm
Info
Following extreme air temperature or altitude changes, adjust the idle speed
again.
9.102Emptying the carburetor float chamber x
Danger
Fire hazardFuel is highly flammable.
Never refuel the vehicle near open flames or burning cigarettes, and always switch off the engine first. Be careful that no
fuel is spilt, especially on hot vehicle components. Clean up spilt fuel immediately.
Fuel in the fuel tank expands when warm and can escape if the tank is overfilled. See the notes on refueling.
Warning
Danger of poisoningFuel is poisonous and a health hazard.
Avoid contact between fuel and skin, eyes and clothing. Do not inhale fuel vapors. If fuel gets into your eyes, rinse immedi-
ately with water and contact a doctor. Wash affected skin areas immediately with soap and water. If fuel is swallowed, con-
tact a doctor immediately. Change clothing that has come into contact with fuel. Store fuel in a suitable canister according
to regulations and keep it out of the reach of children.
Warning
Environmental hazardImproper handling of fuel is a danger to the environment.
Do not allow fuel to get into the ground water, the ground, or the sewage system.
Info
Carry out this work with a cold engine.
Turn handle of the fuel tap to the OFF position. (Figure 500137-10 p. 22)
No more fuel flows from the tank to the carburetor.
500256-10
Direct the hose of the float chamber into a suitable container.
Info
Water in the float chamber results in malfunctioning.
Undo the screw (turn it counterclockwise) a few turns and drain the fuel from
the float chamber.
Tighten screw .
9.103Checking engine oil level
Info
The engine oil level must be checked when the engine is cold.
Stand the motorcycle upright on a horizontal surface.
200119-10
Condition
Engine is cold.
Check the engine oil level.
The engine oil must be between the halfway mark and the top of the oil level
viewer .
» If the engine oil level is below the specified level:
Top up the engine oil. ( p. 84)