Original Keihin PWK 36mm carburetor P/N 54831201544 removed from a 2008 KTM 300XCW. This carburetor is in good condition and came from a well running bike. Currently has a #162 main and #40 pilot installed for an elevation of 1000 feet. It is clean inside. FK0240 VF4 is etched into the gasket flange. The right side upper vent tube boss is broken off as shown in the close-up photo. This carb will fit 2007 - 2015 200, 250 and 300cc two stroke big bikes and possibly more. Confirm fitment prior to purchase.