The 555728 black slide is the most restrictive and very effective at slowing the beginners (Kid Karts) down for the very young 5 to 8 year old drivers. At WOT the slide is open to a maximum legal amount of .285 inches. It is commonly used for the youngest Kid Kart drivers. Therefore, the 206 makes just over 3 horsepower.
If you want to set the slide to the maximum legal limit type "slide gauge" in the search box towards the upper right of this page.
*for reference, please refer to Racing Performance Catalog & Reference Guide on the Briggs & Stratton website