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Throttle Body Assy - Kawasaki KX450F 2012 Owner's Manual

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A. Locknuts
B. Adjusters
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 im-
properly adjusted or incorrectly routed, or dam-
aged. Be sure to correct any of these conditions
before riding.
Operation with improperly adjusted, incor-
rectly routed, or damaged cables could result
in an unsafe riding condition. Be sure the
control cables are adjusted and routed cor-
rectly, and are free from damage.

Throttle Body Assy

Idle Speed Adjustment
Remove the left radiator shroud (see Spark Plug
Thoroughly warm up the engine.
Turn the idle adjusting screw/choke knob to adjust
the idle speed 1 950 ~ 2 050 r/min (rpm) by using
the engine revolution tester (The tester should be
followed by the method described by the manu-
A. Idle Adjusting Screw/Choke Knob
B. Tester
Open and close the throttle a few times to make
sure the idle speed does not change, and readjust
if necessary.


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