I have a 2004 speedmaster, AI removed snorkel is out with off road pipes I got from the dealer. I took it in for a dyno and the tech told me that the jetting was fine but bike running a little lean. He wants to turn the fuel mixture screw to richen it up a little .Any thoughts on this? I was told that would get the slow down pop that I have fixed up. I live at 6500 ft. I looked at the print out of the dyno and am not sure how to read it. My bike had a nice curve on performance with 53.5 Hp and 43.5 ft lbs Any help would be nice.
