As Mr Numbers says, you can access a rev counter through the diagnostic mode in the dash.
        
 
         Read this thread: 
        
http://www.xt660.com/showthread.php?t=11677
         
         
         
         
          Quote:
         
 
          
          
            
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               Originally Posted by 
              BigBlue  
              I've set the fuel mod to 5 below the air temp today (not had a chance to test run it today but will get plenty of time to play around with it slightly on my travels. The fuel mod has a grey knob with a thin green marker line and green little ring at the bottom of it, a white dot mark on the box.
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         When you say 5 below air temp, do you mean you've already used the DIAG mode to access the AIT sensor temperature reading and set the fuelling mod to 5 below ambient, or do you mean you've set it at 5 o'clock on the dial?
         
        
 Did you get Kev's instructions with it?