MANUFACTURED BY: |  | MCCULLOCH MOTORS CORP. |
 | | LOS ANGELES, CALIFORNIA, U.S.A. |
SERIES OR ASSEMBLY NUMBER: | | none |
SERIAL NUMBER PREFIX: | | none |
YEAR INTRODUCED: | | January 1957 |
YEAR DISCONTINUED: | | April 1959 |
ENGINE DISPLACEMENT: | | 3.3 cu. in. (54ccm) |
NUMBER OF CYLINDERS: | | 1 |
CYLINDER BORE: | | 1.750 in. (44.4mm) |
PISTON STROKE: | | 1.375 in. (35mm) |
PISTON RING THICKNESS: | | |
CYLINDER TYPE: | | Aluminum with cast iron sleeve |
INTAKE METHOD: | | Reed valve |
MANUFACTURER ADVERTISED H.P.: | | not advertised |
WEIGHT: | | 21 lbs. (9.5 kg), powerhead only |
OPERATOR CONFIGURATION: | | One Man operation |
HANDLEBAR SYSTEM: | | Rigid |
CHAIN BRAKE: | | none |
CLUTCH: | | Centrifugal |
DRIVE TYPE: | | Bevel gear transmission |
CONSTRUCTION: | | Die cast MAGNESIUM and ALUMINUM alloys |
MAGNETO TYPE: | | McCulloch |
CARBURETOR: | | McCulloch diaphragm type |
MAJOR REPAIR KIT: | | nla |
MINOR REPAIR KIT: | | nla |
AIR FILTER SYSTEM: | | Flocked wire screen |
STARTER TYPE: | | McCulloch automatic rewind |
OIL PUMP: | | Manual, located in transmission |
MAXIMUM ENGINE RPM: | | 6,200 |
IDLE RPM: | | |
IGNITION TIMING: | | fixed |
BREAKER POINT SETTING: | | Just breaking with timing pin inserted in timing hole |
FLYWHEEL/COIL AIR GAP: | | 0.010 in. (0.25 mm) |
SPARK PLUG TYPE: | | Champion J8J |
SPARK PLUG GAP: | | 0.025 in. (0.63mm) |
CRANKSHAFT MAIN BEARINGS: | | Ball |
FUEL TANK CAPACITY: | | |
FUEL OIL RATIO: | | 1/2 pint oil to 1 gallon fuel |
RECOMMENDED FUEL OCTANE: | | Regular |
MIX OIL SPECIFICATION: | | McCulloch two-cycle chain saw mix |
CHAIN PITCH: | | 1/2 in., .500" (12.7mm) |
CHAIN TYPE: | | Oregon 21C or McCulloch 1/2" Pintail |
BAR MOUNT PATTERN: | | |
SHORTEST GUIDE BAR SUPPLIED: | | 12 in. (30 cm) |
LONGEST GUIDE BAR SUPPLIED: | | 24 in. (60 cm) |
COLOUR SCHEME: | | McCulloch Yellow enamel with Black wrinkle finish starter housing |
PAINT CODES: | | |
ILLUSTRATED PARTS LIST: | | 56774, micro fiche card 2 |
SERVICE MANUAL: | | |