MANUFACTURED BY: CRAFTSMAN (SEARS ROEBUCK & CO.) CHICAGO, IL U.S.A. SERIES OR ASSEMBLY NUMBER: 917.60008 YEAR INTRODUCED: 1956 YEAR DISCONTINUED: ENGINE DISPLACEMENT: 4.7 cu. in. (77cc) NUMBER OF CYLINDERS: 1 CYLINDER BORE: 2.0 in. (50.8 mm) PISTON STROKE: 1.5 in. (38 mm) CYLINDER TYPE: Aluminum with cast iron sleeve INTAKE METHOD: Reed valves MANUFACTURER ADVERTISED H.P.: 4 WEIGHT : 23 lbs. powerhead only OPERATOR CONFIGURATION: One Man operation HANDLEBAR SYSTEM: Rigid CHAIN BRAKE: none CLUTCH: Centrifugal DRIVE TYPE: Direct CONSTRUCTION: Die cast magnesium MAGNETO TYPE: Phelon F-2120H CARBURETOR: Tillotson HL-35A MAJOR REPAIR KIT: nla MINOR REPAIR KIT: DG-1HL AIR FILTER SYSTEM: Skinner ribbon filter element STARTER TYPE: Fairbanks Morse automatic rewind OIL PUMP: Manual OPERATING RPM: 4,000 IGNITION TIMING: 0.175 in. (4.44 mm) before TDC BREAKER POINT SETTING: 0.020 in. (0.51 mm) FLYWHEEL/COIL AIR GAP: fixed SPARK PLUG TYPE: Champion J8J, Autolite A7X, AC M45 SPARK PLUG GAP: 0.030 in. (0.76 mm) CRANKSHAFT MAIN BEARINGS: Ball FUEL TANK CAPACITY: 54 oz. (1.6 Litres) FUEL OIL RATIO: 1/2 pint to 1 gallon = 16:1 RECOMMENDED FUEL OCTANE: Regular MIX OIL SPECIFICATION: SAE 30 non-detergent CHAIN PITCH: 7/16 in. CHAIN TYPE: Oregon BAR MOUNT PATTERN: SHORTEST GUIDE BAR SUPPLIED: 16 in. (40 cm) LONGEST GUIDE BAR SUPPLIED: 20 in. (50 cm) COLOUR SCHEME: Metallic grey enamel