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I have a 96 formula stx 583,The problem i'm having is at low rpm's there's something thats not quite right,It doesn't run bad,it's just not real crisp up until about 6000rpm,can't tell wether it might be rich or lean or where to start to try to fix it(plugs look good,light brown).Everything is stock,run good amsoil,It has fresh gas(93),the carbs were cleaned,rave valves were cleaned,new external and trigger coil along with new cdi box.The only setting thats not stock is the clip on the needle is leaned out 1 position(haven't tried to move this back to stock yet as we've only got 1 ride in so far,could this be the problem?) Overall it runs great,just when your cruising along and not on the pipe it has this issue of not being real crisp.Thanks for any help on this.
 
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