Pilot Mixture Adjustment Screw - Yamaha

Makes adjusting your pilot jet's air/fuel mixture a breeze with this unique finger-turn pilot jet mixture screw. Do away with tiny screwdrivers and crawling around on your knees with this easy-to-operate part. Enhances fuel efficiency while improving cold start-up and low end performance. Allows you to easily adjust air-fuel ratio for weather and altitude. Made in the USA.