Originally Posted by
rb70383
Just to make sure when I said bike is reporting lean I meant through the AFV. Low AFV...ecm trying to lean it out.
Does it run smooth? Misfires? If the fuel system is supplying, aslong injectors arent leaking, all the air is entering the engine how it should, ignition is next.
Did you run a fuel pressure gauge during the ride? Where did you tap in? Does it drop with acceleration?
Another idea...Rear exhaust leak? I think on these bikes it would have to be a rather excessive one but still.