December 28, 201312 yr Need information on a hitachi 1600 carburetor.Does it have a fast idle cam.What makes it idle faster till it warms up.Mine does not work.What could be wrong? Thanks
December 28, 201312 yr Yes it does. It is attached to the choke flap shaft. If the choke is setting properly when cold, then someone has backed out the high idle screw on the cam. It's on the passenger side of the carb. If you move the choke flap by hand and look at that side, you'll see the cam and locate the correct screw as the regular idle screw is on that side too.
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