Air/Fuel ratio changes from Delkevic - 2017+ Kawasaki Z650 Forum
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post #1 of 1 (permalink) Old 09-23-2018, 11:48 PM Thread Starter
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Air/Fuel ratio changes from Delkevic

So I officially put the Ninja 650 on the road today, and started creating the new fuel map using the Bazzaz ZFI, with the Z AFM autotune. The beauty of this system, is it records all AFR data to allow you to adjust fueling as you see fit. Well.... the outcome of what a Delkevic system will do to stock AFR's are a bit shocking. I knew the bike was going to run on the lean side, but this was a bit much for my taste. Have a look for yourself....

After seeing these results, I highly recommend a fuel controller for this system. In comparison, my Z650 with Yoshimura Alpha (pre Rapid Bike ECU) never broke out of the 14 range, while this system saw into the 16's.

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