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OK, I did something to the carb and its running a little better
Posted 14 May 2004 - 06:10 PM
I remembered that a few years ago ( the last time I had to pass emissions) that I didnt originally pass until I turned that screw out about 8 turns ( I know it seems excessive, but I scored a.01% carbon monoxide with 12 ppm hydrocarbons at idle and a little more at 2500).
What exactly does this screw do? I know its for the fuel, and Im thinking idle jet, but the idle jet shouldnt effect the main jets, and yet turning it gave me a lower score on the higher end as well.
Also, I dont see where it says what model of hitachi I have? where exactly is the plate the designates this?
Posted 14 May 2004 - 06:55 PM
That would be the idle mixture adjustment screw. 4 turns out is where it should be set initially before finer adjustement while running.
Posted 14 May 2004 - 07:58 PM
Posted 14 May 2004 - 10:33 PM
Posted 15 May 2004 - 11:46 AM
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