As a new owner of the 2003 Sport/Lemans, I've found the method posted here: http://www.v11lemans.com/forums/index.php?showtopic=12204 to be straight forward and easy to follow. It cured my hiccup at arround 1700 rpm as indicated by the OE tach. When the proceedure was completed, tach indicated 1000 RPMs, but, on a subsequent test ride, increased to somewhere between 1100 and 1200 RPMs after engine warmed to operating temp. Later rides found RPMs to have settled around the 1100 RPM mark and engine runs good without missing or coughing anywhere in the rev range. Suspect the Factory OE tach to be a little off calibration. Plug reading shows a little lean condition, but acceptable. Now, the only way I think I can cure the lean condition is with the Power Commander. My bike is not stock. The evaporative emisssions equipment has been removed, and a Stucci crossover iinstalled. Stock air box is retained, with K&N filter. These are the only mods. No Power Commander map currently exists for this configuration. I finally wish to emphasize that the proceedure was followed to the letter with no values changed. I used only a Carb Stick mercury manometer and a good quality digital multimeter.