You haven't got an O2 sensor if it's an '06 bike, so no worries there.
        
 
         
         
         
          Quote:
         
 
          
          
            
            | 
               Originally Posted by 
              strelm  
              I've tried to find the AIS, but it eludes me and there's no clear photo on the site. There's 3 potential locations on the manual diagram - 
              9. Air filter case breather hose
 10. Pilot air hose
 11. Air filter case to air cut-off valve hose
 
 But nothing that says 'AIS' hose.
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         Have a read of this thread...
         
         
        
http://www.xt660.com/showthread.php?t=5544
         
         Kev's posted some pictures which will help you identify the AIS pipework.