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MALL 12A LATER AND NEWER MODELS.

NEWER MODEL WITH AUTOMATIC OILING WITH PASSAGE IN CENTRE OF SPROCKET.



OLDER MODEL WITH MANUAL OILER PLUNGER AND ROUND TRANSMISSION.



MANUFACTURED BY: MALL TOOL COMPANY CHICAGO, ILLINOIS, U.S.A. CRETE, ILLINOIS, U.S.A. TORONTO, ONTARIO, CANADA GUELPH, ONTARIO, CANADA SERIES OR ASSEMBLY NUMBER: 35250 YEAR INTRODUCED: 1951 YEAR DISCONTINUED: ENGINE DISPLACEMENT: 5 cu. in. NUMBER OF CYLINDERS: 1 CYLINDER BORE: 2.0625 in. (52 mm) PISTON STROKE: 1.500 in. (38 mm) CYLINDER TYPE: Chrome Plated Aluminum INTAKE METHOD: Reed Valve MANUFACTURER ADVERTISED H.P.: 3.5 WEIGHT : 33 lbs. with 18 in. bar & chain OPERATOR CONFIGURATION: One Man HANDLEBAR SYSTEM: Rigid CHAIN BRAKE: none CLUTCH: Mall Centrifugal DRIVE TYPE: Bevel Gear Transmission CONSTRUCTION: Sand cast magnesium MAGNETO TYPE: Phelon or Wico CARBURETOR: Tillotson float type MAJOR REPAIR KIT: nla MINOR REPAIR KIT: nla AIR FILTER SYSTEM: Skinner ribbon element STARTER TYPE: Mall Automatic rewind OIL PUMP: Manual, built into transmission OPERATING RPM: 4,500 IGNITION TIMING: 30 degrees before TDC BREAKER POINT SETTING: 0.020 in. (0.5 mm) FLYWHEEL/COIL AIR GAP: fixed SPARK PLUG TYPE: Champion J6J SPARK PLUG GAP: 0.025 in. (0.63 mm) CRANKSHAFT MAIN BEARINGS: Ball FUEL TANK CAPACITY: 48 fl. oz. FUEL OIL RATIO: 3/4 pint to 1 gallon = 12:1 RECOMMENDED FUEL OCTANE: 72 to 85 regular grade MIX OIL SPECIFICATION: SAE 30 CHAIN PITCH: 9/16 in. CHAIN TYPE: Mall Side Planer BAR MOUNT PATTERN: SHORTEST GUIDE BAR SUPPLIED: 18 in. (45 cm) LONGEST GUIDE BAR SUPPLIED: 42 in. (106 cm) COLOUR SCHEME: MALL Red Enamel