View Full Version : air/gas screw
rancher350rider
04-01-2006, 01:44 PM
i got my new hmf but i dont know where to adjust the air gas screw on it where is it located at
400exstud
04-01-2006, 02:30 PM
I take it that you know that the air/fuel screw is only for idle to 1/4 throttle? With a pipe you usually have to fidget with the main jet.
With that out of the way, the air/fuel screw is on the bottom of the carb. Its a tiny brass one.
rancher350rider
04-01-2006, 02:42 PM
yes i know u have to jet it i already did that but i dont know where the that screw is at
is it the screw nere the throtel thing ??
cals400ex
04-01-2006, 08:43 PM
it is a brass colored screw located on the very bottom of the carb. you will have to adjust it with a flat blade screwdriver. i would turn this screw out around a 1/4 of a turn. this will make the idle circuit a hair richer to accomodate the pipe.
6858-400ex
04-02-2006, 01:05 AM
look right behind the idle screw bracket
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