If U use gas analyzer, then REMEMBER close another muffler pipe with some stuff, like just right size wood, that it DONT TAKE air backwards from that pipe !!!! NEED to do so, if U want put analyzer to exhaust output. I have seen, what happens, if that is not done: There is some "pumping effect", what cause wrong display to analyzer. Such have happened to me.... If U tune same time, then U have to wait some mins, that analyzer start to function. That have some delay and remember adjust little by little. Anyway i dont trust so much to such analyzers. That function much better, if U put Your bike to Dyno and then adjust it little by little, then You can maybe find best adjustments, but surely much harder job with Weber, than with adjustable injection, like P7 with some adjustable FIM eprom, what U can remap in dyno with FIM software/pc...
