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SNAFU
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Ok, here's a great link explaining in plain language how you properly tune a Fuel Injected motorcycle http://www.fuelinmoto.com.au/tuning.html

Here's an exerpt on Lambda Probes:
Lambda, or Air-Fuel Ratio, is a derived indicator of mixture. A lambda of 1.0 is equivalent to an air-fuel ratio of 14.7 : 1, that which is called stoichiometric, where optimum combustion, and minimum emissions, occur. This figure does not produce ideal acceleration, however. A richer mixture is required for acceleration. We use typically a Lambda of 0.85 ( Air-Fuel ratio of 12.5) for full throttle sustained power, 0.88 (air-fuel ratio of 13 : 1) for acceleration, and 0.96 (air-fuel ratio of 14 : 1) for cruise, with graduations between these points
 
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