Motorcycle · Motorcycle upkeep

What most often causes a motorcycle engine to seize, or "lock up"?

Correct answer: Too little oil in the engine.

Answer options

  1. AToo little oil in the engine Correct
  2. BToo little fuel in the tank
  3. CVery cold outside temperatures

Why

Oil keeps the engine's moving parts from grinding against one another. Without enough of it, friction heats those parts until they bind together and the engine can no longer turn. Running out of fuel simply makes the engine quit; it does not lock it.

About this question

Topic: Motorcycle upkeep   License: Motorcycle

Part of these practice sets:

Where it applies: Asked in every state.

Practice the whole set

This question is part of Fit, Controls and Pre-Ride Checks (12 questions). Take the full set and check your score.

Practice Fit, Controls and Pre-Ride Checks

Practice on your phone.

Practice here in your browser, or use the app with the same questions and explanations. It's free on the App Store.