13. FUEL SYSTEM/CARBURETOR/ FUEL PUMP/ FUEL TANK DINK 50/125 Remove the compression spring and vacuum Vacuum Piston Spring piston. Remove the needle holder, spring and jet Vacuum Piston needle from the piston. · Be careful not to damage the vacuum piston diaphragm. VACUUM PISTON INSPECTION Inspect the vacuum piston and jet needle for wear or damage. Inspect the diaphragm for deterioration and tears. Needle Holder Jet Needle Screw FLOAT CHAMBER DISASSEMBLY Remove the three float chamber screws and the float chamber. Float Chamber 13-31