NEW Keihin of Japan OEM Part! Includes O-ring For slide as well unlike the others. Adds More Power To Most Older Carbs.The item "KEIHIN FCR-MX 37 39 40 41 Flatslide Carburetor Throttle Valve Vacuum Slide Plate" is in sale since Wednesday, August 1, 2018. This item is in the category "eBay Motors\Parts & Accessories\Motorcycle Parts\Other Motorcycle Parts". The seller is "oem-design" and is located in Temecula, California. This item can be shipped worldwide.