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Model: 4-30

MANUFACTURED BY:
McCULLOCH MOTORS CORP.
LOS ANGELES, CALIFORNIA, U.S.A.
SERIES OR ASSEMBLY NUMBER:
YEAR INTRODUCED:
March 1953
YEAR DISCONTINUED:
September 1954
ENGINE DISPLACEMENT:
5.3 cu. in. (87cc)
NUMBER OF CYLINDERS:
1
CYLINDER BORE:
2.125 in. (54mm)
PISTON STROKE:
1.500 in. ((38mm)
PISTON RING THICKNESS:
CYLINDER TYPE:
Aluminum with cast iron sleeve
INTAKE METHOD:
Rotary Valve
MANUFACTURER ADVERTISED H.P.:
4
WEIGHT:
30 lbs. (13.6 kg) powerhead only
OPERATOR CONFIGURATION:
One Man operation
HANDLEBAR SYSTEM:
Rigid
CHAIN BRAKE:
none
CLUTCH:
Centrifugal
DRIVE TYPE:
Gear reduction
CONSTRUCTION:
Die cast magnesium
MAGNETO TYPE:
McCulloch
CARBURETOR:
McCulloch diaphragm type
MAJOR REPAIR KIT:
nla
MINOR REPAIR KIT:
nla
AIR FILTER SYSTEM:
Wire screen element
STARTER TYPE:
McCulloch automatic rewind
OIL PUMP:
Manual
MAXIMUM ENGINE RPM:
IDLE RPM:
IGNITION TIMING:
fixed
BREAKER POINT SETTING:
0.018 in. (0.45mm)
FLYWHEEL/COIL AIR GAP:
0.006 to 0.012 in. (0.15 to 0.3 mm)
SPARK PLUG TYPE:
Champion J8J
SPARK PLUG GAP:
.020 in. (0.5mm)
CRANKSHAFT MAIN BEARINGS:
Ball and roller type
FUEL TANK CAPACITY:
FUEL OIL RATIO:
1/2 pint to 1 gallon (20:1)
RECOMMENDED FUEL OCTANE:
Regular
MIX OIL SPECIFICATION:
McCulloch two-cycle mix
CHAIN PITCH:
1/2 in.
CHAIN TYPE:
McCulloch
BAR MOUNT PATTERN:
SHORTEST GUIDE BAR SUPPLIED:
18 in. (45 cm)
LONGEST GUIDE BAR SUPPLIED:
36 in. (91 cm)
COLOUR SCHEME:
McCulloch Yellow enamel
PAINT CODES:
ILLUSTRATED PARTS LIST:
SERVICE MANUAL:

COMMENTS:

 

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