MANUFACTURED BY:McCULLOCH MOTORS CORP.LOS ANGELES, CALIFORNIA, U.S.A.
SERIES OR ASSEMBLY NUMBER:Type 1
YEAR INTRODUCED:October 1949
YEAR DISCONTINUED:March 1950
ENGINE DISPLACEMENT:4.71 cu. in. (77cc)
NUMBER OF CYLINDERS:1
CYLINDER BORE:2.00 in. (50.8mm)
PISTON STROKE:1.50 in. (38mm)
CYLINDER TYPE:Aluminum chrome plated, later with cast iron sleeve
INTAKE METHOD:Rotary valve
MANUFACTURER ADVERTISED H.P.:3 @ 4,500 rpm
WEIGHT :25 lbs. (11.34 kg.) with 18 in. bar & chain
OPERATOR CONFIGURATION:One Man operation
HANDLEBAR SYSTEM:Rigid
CHAIN BRAKE:none
CLUTCH:Centrifugal
DRIVE TYPE:Gear reduction 2.69-1
CONSTRUCTION:Die cast magnesium
MAGNETO TYPE:McCulloch
CARBURETOR:McCulloch all position diaphragm type
MAJOR REPAIR KIT:nla
MINOR REPAIR KIT:nla
AIR FILTER SYSTEM:Wire screen
STARTER TYPE:McCulloch Kickproof automatic rewind with steel cable
OIL PUMP:Manual
IGNITION TIMING:fixed
BREAKER POINT SETTING:0.018 in.
FLYWHEEL/COIL AIR GAP:0.006 to 0.012 in. (0.15 to 0.3 mm)
SPARK PLUG TYPE:Champion J8J
SPARK PLUG GAP:0.020 in.
CRANKSHAFT MAIN BEARINGS:Ball and roller types
FUEL OIL RATIO:1/2 pint to 1 gallon = 16:1
RECOMMENDED FUEL OCTANE:Regular
MIX OIL SPECIFICATION:SAE 30
CHAIN PITCH:1/2 in.
CHAIN TYPE:McCulloch
SHORTEST GUIDE BAR SUPPLIED:18 in. (45cm)
COLOUR SCHEME:McCulloch Yellow enamel