Moosestang is correct,its a too lean condition. Common with VTwins. The inventor of the Fac Duc 02 manipulator was working with me on coming out with a prototype for the CR. Its been a while for this to happen and I'm not bugging him about it. He has sold hundreds of them to the Ducati crowd, me being a satisfied owner. Amazing fix for $80. However, the 2v Ducati I owned (Multistrada) had only one lambda probe sensor requiring one device, I don't know what has to be done with a Buell with two sensors. I know folks with the 1098 and 1198 Ducati, install two of them for their bikes, which doubles the cost. I'll get an update and report back.