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Practice question

How much slack (free play) should typically exist in a properly adjusted motorcycle final drive chain?

  1. Zero slack; the chain must be completely rigid and tight
  2. Approximately 20 to 30 mm (about 1 inch) of vertical movement at the midway point
  3. At least 100 mm (4 inches) of sag
  4. The chain should hang down and touch the exhaust pipe

Answer: B — Approximately 20 to 30 mm (about 1 inch) of vertical movement at the midway point

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