{"product_id":"vacuum-piston-return-spring","title":"Vacuum piston return spring","description":"\u003cp\u003eAlso known as a vacuum valve spring, a carb spring, a slide spring, a diaphragm spring... You get the idea. This is the spring that helps push the carburetor's vacuum slide back down when you let off the throttle.\u003c\/p\u003e\n\u003cp\u003eIf you need one, either the previous owner cut your original springs thinking that was a \"go fast\" upgrade, or else someone goofed and bent one up. So it goes.\u003c\/p\u003e\n\u003cp\u003eJust generically speaking, this is for Keihin CVK carburetors. Based on the photos I can find, this is NOT the same as the one in the Kawasaki KLX250S. Ural's spring has fewer coils.\u003c\/p\u003e","brand":"Ural","offers":[{"title":"Default Title","offer_id":49674498113688,"sku":"12908802000","price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/1344\/9624\/files\/2026-08-1210.12.31.jpg?v=1786547978","url":"https:\/\/shop.nashvillemotorcyclerepair.com\/products\/vacuum-piston-return-spring","provider":"Nashville Motorcycle Repair","version":"1.0","type":"link"}