MANUFACTURED BY: |  | McCULLOCH MOTORS CORP. |
 | | LOS ANGELES, CALIFORNIA, U.S.A. |
SERIES OR ASSEMBLY NUMBER: | | none |
SERIAL NUMBER PREFIX: | | none |
YEAR INTRODUCED: | | September 1956 |
YEAR DISCONTINUED: | | April 1958 |
ENGINE DISPLACEMENT: | | 4.4 cu. in. (72ccm) |
NUMBER OF CYLINDERS: | | 1m |
CYLINDER BORE: | | 2.00 in (50.8mm) |
PISTON STROKE: | | 1.375 in. (35mm) |
PISTON RING THICKNESS: | | 2 rings used |
CYLINDER TYPE: | | Aluminum with cast iron sleeve |
INTAKE METHOD: | | Reed valves plus third port induction |
MANUFACTURER ADVERTISED H.P.: | | not advertised |
WEIGHT: | | 19 lbs. (8.6 kg) powerhead only |
OPERATOR CONFIGURATION: | | One Man operation |
HANDLEBAR SYSTEM: | | Rigid |
CHAIN BRAKE: | | none |
CLUTCH: | | Centrifugal |
DRIVE TYPE: | | Direct |
CONSTRUCTION: | | Die cast MAGNESIUM |
MAGNETO TYPE: | | McCulloch |
CARBURETOR: | | Tillotson HL-19 series |
MAJOR REPAIR KIT: | | RK-28HL |
MINOR REPAIR KIT: | | DG-5HL |
AIR FILTER SYSTEM: | | Flocked screen |
STARTER TYPE: | | McCulloch automatic rewind |
OIL PUMP: | | Manual |
MAXIMUM ENGINE RPM: | | 6500 with air vane governor |
IDLE RPM: | | |
IGNITION TIMING: | | fixed |
BREAKER POINT SETTING: | | .018 in or just breaking with timing pin |
FLYWHEEL/COIL AIR GAP: | | 0.010 in. (0.25 mm) |
SPARK PLUG TYPE: | | Champion J8J |
SPARK PLUG GAP: | | .025 in. (0.63 mm) |
CRANKSHAFT MAIN BEARINGS: | | Ball |
FUEL TANK CAPACITY: | | |
FUEL OIL RATIO: | | 1/2 pint to 1 gallon = 16:1 |
RECOMMENDED FUEL OCTANE: | | Regular |
MIX OIL SPECIFICATION: | | McCulloch 2-cycle oil |
CHAIN PITCH: | | 7/16 in. |
CHAIN TYPE: | | Oregon 61C or McCulloch Pintail |
BAR MOUNT PATTERN: | | |
SHORTEST GUIDE BAR SUPPLIED: | | 16 in. |
LONGEST GUIDE BAR SUPPLIED: | | 24 in. |
COLOUR SCHEME: | | McCulloch Yellow enamel |
PAINT CODES: | | |
ILLUSTRATED PARTS LIST: | | 56777, micro fiche card 5 |
SERVICE MANUAL: | | |