How much do you really know about the machines we use every day? Learning how engines work as well as their maintenance will help you not only use them, but appreciate them!

Let’s take a closer look and get you on your way to a successful career or hobby using small but mighty machines.

In this project, you’ll learn:

  • The history, function and combustion of small engines
  • General shop safety and safety around engines
  • Engine care, handling and troubleshooting
  • How to clean and maintain an engine
  • The basics of spark plugs, carburetors and batteries

Reference Manual

Record Book


4-H Project Disclaimer

4-H Ontario is pleased to be able to provide 4-H project resources for use by volunteers in 4-H clubs. With so many topics to choose from, 4-H volunteers are trusted to use these resources to provide safe, respectful and quality programming while using their judgement to assess the appropriateness of activities for their particular group of youth.

By downloading any 4-H resource you agree not to use, distribute, reproduce, modify, adapt, publish, translate, publicly perform and publicly display such resources (in whole or in part) for any purpose other than delivering the 4-H program. You also agree to give credit to the original creators. Your provincial or national 4-H organization may have restrictions on the types of 4-H projects or activities which can be completed in your area.

4-H Ontario grants permission to 4-H volunteers to photocopy these 4-H project resources for use in their local 4-H program.

All information presented in these project resources was accurate and appropriate at the time of development.

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Science & Technology