MANUFACTURED BY: CLINTON MACHINE COMPANY CLINTON, MICHIGAN, U.S.A. SERIES OR ASSEMBLY NUMBER: 323, 323A YEAR INTRODUCED: 1953 YEAR DISCONTINUED: 1959 ENGINE DISPLACEMENT: 4.48 cu. in. (73.4 cc) NUMBER OF CYLINDERS: 1 CYLINDER BORE: 1.875 in. (47.6 mm) PISTON STROKE: 1.625 in. (41.27 mm) CYLINDER TYPE: Aluminum with cast iron sleeve INTAKE METHOD: Reed valves MANUFACTURER ADVERTISED H.P.: 3.5 WEIGHT : 28 lbs. powerhead only OPERATOR CONFIGURATION: One Man operation HANDLEBAR SYSTEM: Rigid CHAIN BRAKE: none CLUTCH: Centrifugal DRIVE TYPE: Gilmer belt reduction, ratio 3:1 CONSTRUCTION: Die cast aluminum MAGNETO TYPE: Phelon or Clinton CARBURETOR: Carter float type MAJOR REPAIR KIT: nla MINOR REPAIR KIT: nla AIR FILTER SYSTEM: Skinner ribbon element STARTER TYPE: Schnacke automatic rewind OIL PUMP: Manual OPERATING RPM: 4,500 to 4,800 IGNITION TIMING: 35 degrees before TDC. BREAKER POINT SETTING: 0.020 in. (0.51 mm) FLYWHEEL/COIL AIR GAP: 0.007 in. to 0.017 in. SPARK PLUG TYPE: Champion F8 SPARK PLUG GAP: 0.025 in. (0.63 mm) CRANKSHAFT MAIN BEARINGS: Ball and caged needle roller FUEL TANK CAPACITY: 1 U.S. Quart = 32 oz. FUEL OIL RATIO: 1/2 pint to 1 gallon RECOMMENDED FUEL OCTANE: Regular MIX OIL SPECIFICATION: SAE 30 CHAIN PITCH: 1/2 in. CHAIN TYPE: Oregon 9C BAR MOUNT PATTERN: SHORTEST GUIDE BAR SUPPLIED: 20 in. LONGEST GUIDE BAR SUPPLIED: 30 in. COLOUR SCHEME: Clinton Yellow and Black enamel