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IEL Beaver.

COMMENTS: Worlds first one man chain saw.
MANUFACTURED BY: IEL (Industrial Engineering Ltd.) VANCOUVER, BRITISH COLUMBIA, CANADA SERIES OR ASSEMBLY NUMBER: YEAR INTRODUCED: 1946 YEAR DISCONTINUED: 1948 ENGINE DISPLACEMENT: 2.785 cu. in. (45.2 cc) NUMBER OF CYLINDERS: 1 CYLINDER BORE: 1.50 in. (38 mm) PISTON STROKE: 1.5625 in. (40 mm PISTON RING THICKNESS: CYLINDER TYPE: Cast Iron INTAKE METHOD: Reed valve MANUFACTURER ADVERTISED H.P.: 1.25 BHP WEIGHT: 35 lbs (15.8 kg) OPERATOR CONFIGURATION: One Man operation (Worlds First) HANDLEBAR SYSTEM: Rigid CHAIN BRAKE: none CLUTCH: Manual 8 plate bronze and steel operating in oil DRIVE TYPE: Roller chain reduction .375 in. pitch operating in oil CONSTRUCTION: Sand cast aluminum MAGNETO TYPE: Bendix Scintilla CARBURETOR: Tillotson AJ-13A, later series AJ-13B MAJOR REPAIR KIT: nla MINOR REPAIR KIT: nla AIR FILTER SYSTEM: Brass wire screen STARTER TYPE: Rope OIL PUMP: Manual MAXIMUM ENGINE RPM: 4,000 IDLE RPM: IGNITION TIMING: BREAKER POINT SETTING: FLYWHEEL/COIL AIR GAP: SPARK PLUG TYPE: Champion J8 SPARK PLUG GAP: .025 in. (0.63 mm) CRANKSHAFT MAIN BEARINGS: Ball FUEL TANK CAPACITY: FUEL OIL RATIO: 8-1 break in, 12-1 normal RECOMMENDED FUEL OCTANE: 70 MIX OIL SPECIFICATION: SAE 50 or 60 CHAIN PITCH: 9/16 in. CHAIN TYPE: IEL scratcher, 825 ft. per min speed BAR MOUNT PATTERN: SHORTEST GUIDE BAR SUPPLIED: 14 in. (35cm) LONGEST GUIDE BAR SUPPLIED: 22 in. (56cm) COLOUR SCHEME: Unpainted aluminum castings, Black shroud and handles