2011 Kawasaki KX250F Owners Manual - Page 54

52 MAINTENANCE AND ADJUSTMENT Throttle Body Assy warm up the engine. • Thoroughly Turn the idle adjusting screw/choke knob to adjust • the idle speed 2 000 ~ 2 100 r/min (rpm) by using the engine revolution tester (The tester should be followed by the method described by the manufacture.). Idle Speed Adjustment improperly adjusted, incorrectly routed, or damaged. Be sure to correct any of these conditions before riding. WARNING Operation with damaged cables could result in an unsafe riding condition. Replace damaged control cables before operation. NOTICE This motorcycle's radiator does not incorporate cooling fan. Prolonged idling of the engine with no airflow through the radiator can cause coolant loss and engine overheating resulting in possible engine damage. Any riding conditions that increase engine temperature will further reduce idling time before coolant loss occurs. These conditions include high ambient temperature, sandy or muddy terrain, or other conditions causing high engine loads at low speeds. Furthermore, warming the engine up excessively before operation, or leaving idling with the hot engine temperature after operation results in the engine overheating, too. A. Idle Adjusting Screw/Choke Knob B. Tester and close the throttle a few times to make • Open sure the idle speed does not change, and readjust • if necessary. With the engine idling, turn the handlebar both ways and check if handlebar movement changes the idle speed. If so, the throttle cable may be the seat (see Air Cleaner section). • Remove • Remove the fuel tank (see Spark Plug section). Cleaning the Throttle Body Assy