Using a Cord to Immobilize a Small Engine Piston - Tech Tips from Repair Clinic

This video provides a quick repair tip to assist everyone from DIYer's to Technicians! When trying to remove certain parts from a small engine, the drive shaft will need to be immobilized. One way to achieve this is by keeping the piston from moving up and down inside the cylinder. Removing the spark plug and stuffing a cord into the cylinder head can jam the piston and immobilize it, allowing you to complete the repair.