I have 3300 miles on my completely stock \'04 Phantom. Recently I moved to Colorado Springs (6400ft.) from Philadelphia (200ft.) and my scooter is running very poorly. It starts ok and after adjusting the low speed it appears to idle ok but i\'ve definitely lost performance (pick up / top speed / acceleration / etc.). I\'m assuming it\'s running too rich now in the thinner air. What is the best course of action for me? i\'m not super interested in playing with it too much as my tools/time/skills/ patience are limited. Any suggestions? Even a referral to a local shop would be ok.

Thanks!!!
benjamin

Your going to have to change the jets in the carb, You will need to find a shop if you don\'t feel you can do it yourself,
Paul aka Sporty

Thanks Paul, I figured as much. Anyone have leads on a reputable shop in the area or where to get the jets for the carb.? How difficult is it to replace them?