13. FUEL SYSTEM/CARBURETOR/ FUEL PUMP/ FUEL TANK DINK 50/125 Remove the two screws and casting enrichment Casting Enrichment Valve Cover valve cover and then take out the spring. Remove the casting enrichment valve. Spring/Casting Enrichment Valve Remove the two screws and auto choke seat. Auto Choke Seat Then remove the O-ring. O-ring 13-12