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Head Bolt tightening?
How often do i need to tighten or retorque the head bolts? the Manual only says at 600 miles but should it be also done when performing the valve adjustment? Or maybe periodically other than that?
What if I do not know what the previous owner did for service and if it was done at all? Im at 16,000 miles. Will it hurt to just do it as a precaution?
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