Make adjusting your pilot jets air/fuel mixture a breeze with this unique fingerturn pilot jet mixture screw Allows you to easily adjust air-fuel ratio for weather and altitude Enhances fuel efficiency while improving cold start-up and low end performance Do away with tiny screwdrivers and crawling around on your knees with this easy-to-operate part Sold individually Made in the U.S.A. Note: Installation requires removal of mixture plug if your stock mixture screw has not been uncovered Note: Kawasaki models require two screws