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Turn AFM counterclockwise for richer????


big-phil

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Closing the air bypass screw (clockwise) will cause more air to go past the Air Flow Meter opening the metering door causing an increase in fuel delivery. Conversely, backing out the screw bypasses more air and the metering door closes reducing the amount of fuel delivery. (Right is rich, left is lean) Now, about the blue lines in hockey...

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When I put in flattops, cam, header, port work. etc on my L6 years ago, the only thing that would help was to LOOSEN the spring on the AFM...

 

* caution * mark where it exists now and very carefully loosen the nuts that hold it (because it can all come untensioned) ... then let the tension off of the spring. I would do this in incremental steps to get it to run as well as you like it to.

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