Mapping each cylinder...

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FYI

Heres a screenshot from comparing the fuel tables front and rear in my bikes Powercommander map. Fuel Table 1 is the front cylinder, Fuel Table 2 is the rear cylinder.

Image

The values in the part of the table shown are the % of fuel difference between cylinders... You can see that at 6000-8000rpm and different throttle positions there are differences of between 10 and 27% between tables.

The graph up top actually show the changed percentage of fuel, from what the ECU (with an akro slip-on map) is telling the injectors to deliver at 40% thottle. Which can be around 20% richer or leaner on each cylinder. And obviously the rear cylinder likes to be a lot richer.
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Valuable information, passed it along to my dyno guy.