OUTDOOR POWER

Contest Description: 

Participants are expected to demonstrate both theoretical understanding of outdoor power equipment and practical knowledge of the 4-stroke engine. This includes locating and interpreting manufacturer service information, performing accurate fastener torquing, adjusting valve lash to specification, and using industry-standard tools and diagnostic equipment safely and correctly  

Project Scope:

1. Knowledge Assessment

   • Multiple-choice questions covering:

     • 2- and 4-stroke engine operation

     • Safety practices

     • Component identification

     • Braking systems

     • Carburetors

     • Troubleshooting

2. Practical Task

   • Disassemble a Powerfist 212CC engine using industry service information to find specifications for valve lash and fastener torque.

   • Students will need to convert ft-lbs to in-lbs (conversion chart provided).

3. Reassembly & Judging

   • Engines will be reassembled and checked for completion and accuracy using a provided rubric.

Tools/ Supplies Required to be brought by students:

• Strap Wrench

• ¼” torque wrench  

• CSA Approved Safety Glasses 

• CSA Approved footwear 

• Proper shop attire to be worn 

• Pencil  

• The below items re required but can be shared

• ½” breaker bar

• ½” 21 mm socket (flywheel nut)

• 3” ½” extension for shallow sockets

• ½” torque wrench (flywheel nut torquing)

• 3/8” torque wrench

• Flywheel puller

• Strap wrench (to hold flywheel)

Provided for Each Competitor:

• Powerfist 212CC engine (running condition)

• ¼” socket set

• ¼” in-lbs torque wrench

• 3/8” socket set

• Spark plug wrench

• Feeler gauges

• 0.1 mm paper strips (for ignition coil spacing)

• Organizing tray

• Sticky notes

• Oil catch container

• Mechanic’s wire

• Piston ring compressor

• Honda GX series service manual (condensed version, see below)

• Vernier calipers

• Thread pitch gauges

Evaluation Information

Service Manual