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Author Message   Mesozoic Posted on Monday, March 24, 2008 - 12:26 pm:        Does anyone do this for the XB12s? If people are starting to mess around with their fuel maps, it doesn't make sense unless they've got a wideband indicating lean/rich regions.   Al_lighton Posted on Monday, March 24, 2008 - 11:26 pm:        There are other tools other than just wideband O2 to provide the necessary feedback, but your point is spot on. Tuning with a butt dyno is pointless and is a good way to ruin an engine. That said, there are some aspects of tuning that can be done effectively with the butt, the ears, and a brain (i.e., transient response, for example). But those changes are made AFTER the rest of the mapping has already been done the proper way.   Mesozoic Posted on Tuesday, March 25, 2008 - 03:27 am:        I suspect it wouldn't be very difficult to weld in a bung to accept an oxygen sensor and run the same old automotive datalogger. Speaking of dataloggers, do any exist for the Buells? Sorry, I'm new to Buells.

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