This is a nice used KEIHIN Flatslide 37mm carburetor that came from a KTM bike. It is compatible with many makes and models, but please check with a reliable source for proper fitment.
The part number on it is J022ARH1 for reference. The item "KEIHIN 37MM 37 MM CARBURETOR FCR CARBURATOR FLAT SLIDE FLATSLIDE CARB NICE KTM" is in sale since Sunday, April 7, 2019. This item is in the category "eBay Motors\Parts & Accessories\Motorcycle Parts\Air Intake & Fuel Delivery\Carburetors & Parts". The seller is "mastercynic" and is located in Allentown, Pennsylvania. This item can be shipped to United States, Canada, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Greece, Portugal, Cyprus, Slovenia, Sweden, Belgium, France, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Croatia, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Pakistan, Paraguay, Reunion.