Question about 2002 Harley Davidson FLHR - FLHRCI Road king

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There is a loud metallic 'thunk' coming from the motor when i rev the engine. Not when I give it gas to go, but when I rev it at a stop light or something. 2002 Fuel Injected HD Heritage Springer. Very noticeable.

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When is the last time you checked the tension on your primary chain? Remove the oval inspection cover and reach in with your finger and lift the top run of the chain up and down. It should have between 3/4" and 7/8" with the engine cold.

About the only other thing that I can think of is the compensator sprocket on the engine's output shaft. The springs my be weak or the nut might have backed off.

I'd just pull the primary cover off and check it all at the same time.

Good Luck
Steve

Posted on Oct 15, 2010

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