Engine Lock Up Tool. The HP Tools Engine Lock-Up Tool makes installing or removing flywheels and flywheel weights simple and secure. By replacing your spark plug with this tool, it locks your two-stroke engine in place to prevent unwanted rotation during maintenance. Constructed from high-quality steel with a protective plastic tip, it ensures both durability and piston safety. Made from strong steel with a soft plastic tip to protect the piston. Enables accurate installation or removal of flywheels, clutches, and countershaft bolts.
