I got a call back from the customer service rep who said that the web site was in error and the 2006 Sportster SCIC does not have the inlet clearance system.
How often am I going to be pulling weeds out? I guess just stay out of the weeds and lilys. I called the factory today, in Quebec, they had the day off on Monday and the customer service person is looking into the question for me for the 2006 model.