Practice question

Blue smoke from the exhaust of a four-stroke motorcycle typically indicates:

  1. A rich fuel mixture
  2. Oil being burned in the combustion chamber (worn rings, valve guides, or seals)
  3. Water in the fuel
  4. A loose chain

Answer: B — Oil being burned in the combustion chamber (worn rings, valve guides, or seals)

The correct answer is shown above. Try the full quiz for additional practice.

Practice more: Red Seal Motorcycle Technician Practice Questions - Red Seal Motorcycle Technician (Interprovincial Red Seal Exam) Exam →