I guess what I'm getting at is that, and I say this without any particular knowledge one way or another, it seems like Yamaha have kept the fuel map consistent between modes and then progressively retarded the ignition maps in STD and B modes to soften the delivery. Hence simple to achieve, if a...
Or maybe that for a given throttle opening you use a set amount of fuel and in A mode you get more power at this opening.
Thus when "normal" riding you actually open the throttle less for the same performance in A mode, thus it's more efficient?
AB-STD economy
I got my MT09 in Jan (stock Tracker ABS) and since the weather was poor and on a new bike etc I started off on B mode mostly and was getting about 48.5mpg (UK).
I soon started to use STD mode more and noticed the economy average getting better, which I thought was odd as I'd...
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