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Sorry not the "actual" bike, just pic from internet. Mine looks just like except the square front tire. Looks like if you run w/o cat and w/o O2 sensor you must use power commander to keep from haveing light on. No problem there, going to anyway. That cat weighs 10lb, is restrictive as hell, open it up add more intake air(better filter) and PCIII gains 8hp. Now Im reading where guys are running PC V with auto tune, to adjust fuel/air for ea gear, ea injector on the fly.
Correct, a wide band that comes with auto tune. I think I'll get the midpipe with the bung for O2. If I dont need it I can always use a bolt.
I've never tuned a bike before so this thread got me thinking. How do most bikes' factory ecu work? Do an open loop fuel map, wait on coolant temp, then switch to closed loop and read the O2 or is it something different? I know it's not that crude, but I think you get the idea......