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Model: 7-55

MANUFACTURED BY:
McCULLOCH MOTORS CORP.
LOS ANGELES, CALIFORNIA, U.S.A.
SERIES OR ASSEMBLY NUMBER:
YEAR INTRODUCED:
1951
YEAR DISCONTINUED:
1954
ENGINE DISPLACEMENT:
9.82 cu. in. (161cc)
NUMBER OF CYLINDERS:
1
CYLINDER BORE:
2.50 in. (63.5mm)
PISTON STROKE:
2.00 in. (50.8mm)
PISTON RING THICKNESS:
CYLINDER TYPE:
Aluminum with cast iron sleeve
INTAKE METHOD:
Rotary vavle
MANUFACTURER ADVERTISED H.P.:
7
WEIGHT:
55 lbs. (25 kg) powerhead only
OPERATOR CONFIGURATION:
Two Man and One Man operation
HANDLEBAR SYSTEM:
Rigid
CHAIN BRAKE:
none
CLUTCH:
Centrifugal
DRIVE TYPE:
Bevel gear transmission
CONSTRUCTION:
Die cast magnesium
MAGNETO TYPE:
McCulloch
CARBURETOR:
McCulloch diaphragm type
MAJOR REPAIR KIT:
nla
MINOR REPAIR KIT:
nla
AIR FILTER SYSTEM:
Wire screen
STARTER TYPE:
McCulloch automatic rewind
OIL PUMP:
Manual
MAXIMUM ENGINE RPM:
IDLE RPM:
IGNITION TIMING:
fixed
BREAKER POINT SETTING:
0.018 in. `
FLYWHEEL/COIL AIR GAP:
0.008 to 0.012 in. (0.2 to 0.3 mm)
SPARK PLUG TYPE:
Champion J8J
SPARK PLUG GAP:
0.020 in. (0.51 mm)
CRANKSHAFT MAIN BEARINGS:
Ball
FUEL TANK CAPACITY:
FUEL OIL RATIO:
1/2 pint to 1 gallon = 16:1
RECOMMENDED FUEL OCTANE:
Regular grade
MIX OIL SPECIFICATION:
SAE 30 non detergent or McCulloch two-cycle chain saw mix
CHAIN PITCH:
3/4 in.
CHAIN TYPE:
McCulloch
BAR MOUNT PATTERN:
SHORTEST GUIDE BAR SUPPLIED:
20 in.
LONGEST GUIDE BAR SUPPLIED:
60 in.
COLOUR SCHEME:
McCulloch Yellow enamel
PAINT CODES:
ILLUSTRATED PARTS LIST:
SERVICE MANUAL:

COMMENTS:


 

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