Du-Bro's 4-Stroke Throttle Linkage eliminates the hassle of setting up throttle linkage for 4-Stroke engines. This superior design leaves more room for linkage movement and is easy to install. Simply drill & tap a 4-40 hole into the side of your motor mount. A must for all 4-Stroke Engine installations. Ideal for 2-Cycle engines as well. 1/pkg.