The Engine Lock Up Tool makes the installation and removal of flywheels and flywheel weights faster and easier.

Also works great when working on clutches and countershaft bolts by preventing the engine from rotating. The tool threads into your spark plug hole and stops the piston, preventing the engine from turning over. Constructed of durable plated steel with a soft plastic tip to keep the piston safe from damage.

Works on all two-stroke engines with a 14mm thread sparkplug (all NGK plugs that start with the letter "B", for example "BR8ES").