Practice question

What is the function of the valve guides in a motorcycle engine?

  1. To guide the valve stem and keep the valve aligned with the valve seat
  2. To regulate the oil pressure flowing to the camshaft lobes
  3. To compress the valve springs when the cam rotates
  4. To prevent carbon deposits from forming on the valve head

Answer: A — To guide the valve stem and keep the valve aligned with the valve seat

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