From inside (document excerpt):
SERVICE SPARE PARTS LIST SPECIFY MODEL NO. WHEN ORDERING PARTS 40cc Gas Chain Saw DATE REVISED DATE PAGE MODEL NO. 5 56 57 PARTS LIST Parts No. Description SCREW SCREW CAP GASKET CYLINDER CAP GASKET PISTON RING PISTON RING WASHER ROLLER PIN, PISTON SEAL CLY CASE ASS’Y CLY CASE, LEFT PIN CLY CASE, RIGHT SCREW BEARING CRANK/ROD ASS’Y GASKET RING SEAL BUSH SCREW WIRE NUT SCREW KIT SPARK ARRESTOR INCL 26, 27 COVER, MESH SPARK ARRESTOR MUFFLER ASS’Y ASS Y GASKET SCREW WIRE SCREW IGNITION ASS’Y NUT FLYWHEEL ASS’Y WOODRUFF KEY GASKET ISOLATER, CARBURETER GASKET RUBBER PLUG AIR GUIDE ASS’Y SCREW AIR FILTER SCREW STARTER HOUSING ASS’Y STARTER ROPE STARTER SPRING EZ STARTER PULLEY HANDLE STARTER SPRING STARTER PULLEY EZ CAP, AIRWAY SPRING SCREW BRACKET BUSH SPACER OIL PUMP ASS’Y OIL HOSE CONNECTOR CAP WASHER CLUTCH ASS’Y RUBBER PLUG BRAKE KIT ASS’Y KIT CHAIN ADJUSTMENT INCL 63B, 63C, 63D, 63E SCREW NUT PALTE BAR C-RING NUT SPIKE SPACER CHAIN CATCH SCREW SHROUD ASS’Y INCL 69, 70, 102 SHROUD KNOB HOLDER, CHOKE LEVER LEVER, CHOKE SCREW HANDLE ASS’Y (L) SWITCH SCREW WASHER CABLE, THROTTLE KIT TRIGGER LOCKOUT INCL 79, 81, 82, 83, 85 SPRING, TRIGGER SPRING TRIGGER, THROTTLE TRIGGER, TRIGGER THROTTLE SPRING RUBBER PLUG TRIGGER, RELEASE OIL CAP ASS’Y FUEL FILTER FUEL CAP ASS’Y HANDLE ASS’Y (R) PRIMER FUEL HOSE KIT FUEL HOSE & FILTER INCL 91, 91B, 91C, 91D, 91E FUEL HOSE FUEL HOSE FUEL FILTER GROMMET HANDLE