I have a 2007 classic with 24000 miles on it. Starts stuttering under acceleration after a few minutes. Replaced air filter, plugs, battery and ran injector cleaner but problem still exists. Please help.
Does the F1 light come on while the engine is running? Do you get any service codes from the ECU? Have you checked the fuel pressure? These are the first thing I can think of, to help you narrow the problem down from the things you have already replaced.
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