How to diagnose an engine that won’t start
Every engine needs fuel, spark and compression. Test them in order.
6 steps →How-to guides
Small Engine Mechanic How-To Guides
Step-by-step guides to common small engine mechanic tasks: the practical side of the job.
Common small engine mechanic tasks
Step-by-step overviews of tasks small engine mechanics perform regularly. Use them to understand the job, prepare for training or refresh your memory.
How to clean a carburetor
Gummed carburetors are one of the most common small engine repairs.
6 steps →How to sharpen and balance a mower blade
Sharp, balanced blades cut cleanly and protect the engine.
6 steps →Before you practice
Learn every core task
Our Small Engine Mechanic training walks through these procedures and more, alongside vocabulary, safety and career-launch lessons.