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'01 800 XC Running lean

1K views 8 replies 7 participants last post by  Sno-X-treme 
How is your idle? I just installed a Sportech boost bottle on my XC700 (no reeds though) and can't get it to idle down. It wants to stay up around 3 grand. Also, do you now get a little backfire? I'm curious to find out what you get for results if you change mains. I feel I'm in your boat.
 
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