Kawasaki KDX200 (1989-1994) [25/174] Idle speed inspection

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2 8 FUEL SYSTEM Open and close the throttle a few times to make sure that the idle speed is as desired Readjust if necessary Carburetor Since the carburetor regulates and mixes the fuel and air going to the engine there are two general types of carburetor trouble too rich a mixture too much fuel and too lean a mixture too little fuel Such trouble can be caused by dirt wear maladjust ment or improper fuel level in the float chamber A dirty or damaged air cleaner can also alter the fuel to air ratio Idle Speed Inspection Start the engine and warm it up thoroughly With the engine idling turn the handlebar to both sides If handlebar movement changes the idle speed the throttle cable may be improperly adjusted or incorrectly routed or it may be damaged Be sure to correct any of these conditions before riding see Cable Harness Hose Routing in the General Information chapter WARNING j Operation with an improperly adjusted incorrectly routed or damaged cable could result in an un safe riding condition Check idle speed Adjust it as needed Idle Speed Adjustment Start the engine and warm it up thoroughly First turn in the air screw until it seats lightly and back it out 1 4 turns Turn the idle adjusting screw to obtain the desired idle speed If no idle is preferred turn out the screw until the engine stops Service Fuel Level Inspection WARNING j Gasoline is extremely flammable and can be ex plosive under certain conditions Always stop the engine and do not smoke Make sure the area is well ventilated and free from any source of flame or sparks this includes any appliance with a pilot light Turn the fuel tap to the OFF position Remove the fuel tank Remove the carburetor and hold it in true vertical position on a stand The fuel hose and carburetor cable do not have to be removed to inspect the fuel level Put the fuel tank on a bench and connect the fuel tap to the carburetor using a suitable hose Remove the drain plug from the bottom of the float bowl and screw a fuel level gauge special tool into the plug hole Hold the gauge vertically against the side of car buretor body so that the zero line is several milli meters higher than the bottom edge of the carburetor body Turn the fuel tap to the ON position to feed fuel to the carburetor Wait until the fuel level in the gauge settles Keeping the gauge vertical slowly lower the gauge until the zero line is even with the bottom edge of the carburetor body NOTE oDo not lower the zero line below the bottom edge of the carburetor body If the gauge is lowered and then raised again the fuel level measure shows somewhat higher than the actual fuel level If the gauge is lowered too far dump the fuel out of it into a suitable container and start the procedure over again A Idle Adjusting Screw B Air Screw Read the fuel level in the gauge and compare it to the specification Turn the fuel tap to the OFF position and remove the fuel level gauge If the fuel level is incorrect adjust it