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CTE/Skilled & Technical Sciences Education Curriculum Small Engine Repair 1
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arrow icon Course Introduction


Core Standards of the Course

Strand 1
Students will be able to understand general shop safety.

Standard 1
Learn safe working habits and procedures. Pass a safety test with 100 percent.

  1. Personal safety.
  2. Tool and equipment safety.
  3. Workplace safety.

Standard 2
Comply with safety rules for working with small engine chemicals.

  1. Chemical manufacturers provide a material safety data sheet (MSDS) for each chemical they produce.
  2. Store chemicals in properly labeled containers.

Standard 3
Identify the harmful exhaust gasses encountered in the small engine field and the hazards they present.

  1. Hydrocarbons (HC) and carbon monoxide (CO).

Strand 2
Students will be able to understand basic hand tools, fasteners, and shop equipment.

Standard 1
Identify, size, and measure metric and standard fasteners.

  1. Bolts, nuts, lock washers, keys, cotter pins, and snap rings.
  2. Right‐hand and left‐hand threads, and course and fine threads.

Standard 2
Correctly identify and use basic hand tools.

  1. Screwdrivers, wrench, sockets, drive handles, extensions, pliers, hammer, chisels, punches, files, hacksaw, pullers, vises, drill bits, grinder.
  2. Describe the use of each of the above tools.

Standard 3
Identify and demonstrate use of basic measuring tools (accurate to 1/32 or 1mm).

  1. Micrometers, rulers, feeler gauges compression gauges, and digital multi meter (DMM).

Standard 4
Use reference manuals or information systems to find service procedures and specifications.

  1. Computer oriented.
  2. Printed manuals.
  3. Owner’s manuals.

Strand 3
Students will be able to identify and perform basic services on a small engine.

Standard 1
Locate and identify basic engine components.

  1. Identify engine components.
    • Block, crankshaft, camshaft, piston, cylinder head, connecting rod, valve train, timing components
    • Fuel systems: carburetor, filter, lines, tank.
    • Ignition systems: spark plug, magneto, coil.
    • Cooling system: cooling fins, shroud, and flywheel.
    • Lubrication system: dip stick, oil slinger or pump, oil plug, oil.
    • Exhaust system: muffler, exhaust gasket.

Standard 2
Change engine oil and filter on a small engine. Use proper disposal methods for waste oil.

  1. Check fuel filter.
  2. Check air filter.
  3. Change and gap spark plug.
  4. Remove and sharpen lawn mower blade.
  5. Check oil level.
  6. Perform an oil change.

Standard 3
Understand the four stroke cycle.

  1. Intake
  2. Compression
  3. Power
  4. Exhaust

Standard 4
Understand the two stoke cycle.

  1. Intake/compression
  2. Power/exhaust
  3. Explain the differences and similarities between 2‐cycle and 4‐cycle engines.
  4. Intake and exhaust ports on 2‐cycle engines versus valves on 4‐cycle engines.
  5. Correctly mix 2‐cycle oil and gasoline mixture.

Strand 4
Students will be able to perform a diagnosis on a small engine.

Standard 1
Understand combustion, internal and external as it relates to the four elements of combustion.

  1. Fuel
  2. Air
  3. Compression
  4. Spark

Standard 2
Troubleshoot fuel system problems.

  1. Carburetor
  2. Fuel tank/filter
  3. Fuel lines/pumps
  4. Air filter/box

Standard 3
Troubleshoot ignition system problems.

  1. Perform spark test.
  2. Remove and replace spark plug.
  3. Check and gap spark plug.
  4. Check magneto, air gap, and kill‐wire.

Standard 4
Troubleshoot compression problems.

  1. Perform a compression test.
  2. Define a wet test
  3. Perform a cylinder leak‐down test.

Strand 5
Students will be able to disassemble and reassemble a small gas engine.

Standard 1
Identify major small gas engine components and parts.

  1. Cylinder block
  2. Side cover
  3. Cylinder
  4. Crankshaft and crank gear
  5. Connecting rod
  6. Bearing
  7. Piston
  8. Piston‐pin (wrist‐pin)
  9. Rings (compression ring/oil control ring)
  10. Tappets/lifters
  11. Valves (intake/exhaust)
  12. Valve spring and valve retainer
  13. Camshaft
  14. Cylinder head
  15. Head gasket
  16. Reed valve (2‐stroke)

Standard 2
Disassemble a small gas engine.

Standard 3
Inspect major small gas engine components and parts.

  1. Cylinder head torque pattern.
  2. Inspect the cylinder.
  3. Ring end gap.
  4. Inspect the piston.
  5. Connecting rod, bearing clearance (plastic gauge)
  6. Check crankshaft endplay.
  7. Check valve clearance.
  8. Inspect valve and valve seat.

Standard 4
Recondition, repair, or replace components and parts.

Standard 5
Reassemble a small gas engine.

Strand 6
Students will be able to solve basic mathematical equations related to small engines.

Standard 1
Solve whole number problems with two‐ and three‐digits.

  1. Addition
  2. Subtraction
  3. Multiplication
  4. Division

Standard 2
Solve fraction problems.

  1. Addition
  2. Subtraction
  3. Multiplication
  4. Division

Standard 3
Solve decimal problems with two‐ and three‐digits.

  1. Addition
  2. Subtraction
  3. Multiplication
  4. Division

Standard 4
Solve basic ratio‐to‐proportion problems.

  1. Fuel/air mixture.
  2. Oil/gas mixture.

Strand 7
Students will be able to understand the importance of employability and work habits.

Standard 1

Standard 2

Standard 3
Staying on task.

Standard 4
Productive team worker.

Standard 5

Strand 8
Students will gain an understanding of Small Engine Repair as a profession and will develop professional skills for the workplace.

Standard 1
As a participating member of the SkillsUSA student organization complete the SkillsUSA Level 1 Professional Development Program.

  1. Complete a self‐assessment inventory and identify individual learning styles.
  2. Discover self‐motivation techniques and establish short‐term goals.
  3. Determine individual time‐management skills.
  4. Define future occupations.
  5. Define awareness of cultural diversity and equity issues.
  6. Recognize the benefits of conducting a community service project.
  7. Demonstrate effective communication skills with others.
  8. Participate in a shadowing activity.
  9. Identify components of an employment portfolio.
  10. Demonstrate proficiency in program competencies.
  11. Explore what is ethical in the workplace or school.
  12. Master a working knowledge of SkillsUSA.
    • State the SkillsUSA motto.
    • State the SkillsUSA creed.
    • Learn the SkillsUSA colors.
    • Describe the official SkillsUSA dress.
    • Describe the procedure for becoming a SkillsUSA officer.

Standard 2
Understand how the use of the skills obtained in small engine repair and how they relate to career opportunities.

Standard 3
Display a professional attitude toward the instructor and peers.

UEN logo - in partnership with Utah State Board of Education (USBE) and Utah System of Higher Education (USHE).  Send questions or comments to USBE Specialist - A Bodell and see the CTE/Skilled & Technical Sciences Education website. For general questions about Utah's Core Standards contact the Director - THALEA LONGHURST .  

These materials have been produced by and for the teachers of the State of Utah. Copies of these materials may be freely reproduced for teacher and classroom use. When distributing these materials, credit should be given to Utah State Board of Education. These materials may not be published, in whole or part, or in any other format, without the written permission of the Utah State Board of Education, 250 East 500 South, PO Box 144200, Salt Lake City, Utah 84114-4200.