Originally Posted by Kev

This is why you have shown abnormal low end leanness results on the Dyno but the real facts are your bike is not lean at all in the low end.

AIS stands for Air Intake System, the system injects air into the exhaust system after the exhaust valves, the Dyno will see the extra injected air as a lean mixture. You need to block off the AIS every time you want to check the A/F ratio otherwise you will always get false A/F ratio readings. If you disconnect the connector at the AIS the valve will remain open^& the whole map will show over 16:1 A/F ratio from idle to rev limiter.

Any good Dyno operator should know this basic prerequisite before a Dyno run.

They won't give you all the Dyno graphs as there would be many of them, ask them for the Dyno run files they can Email them to you, I will decrypt them for you & will be able to tell exactly what your bike is doing on the Dyno.