Do I Need To Retune My Harley Davidson?

So I’m on a quest to eliminate all the possible causes of this engine clacking, knocking noise anytime I try to accelerate. It then disappears but soon returns if I roll on the throttle again. I am in the process at looking at the automatic compression release valves or ACRs to see if they are at fault, but in the meantime I am trying to retune my bike, but my FP3 keeps freezing or will not let me save the autotune…weird!

#RAFixes #HarleyTune #EngineKnock

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Revelator Alf Merchandise

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