MANUFACTURED BY: |  | LUTHER CORPORATION |
 | | WILLIAMS BAY, WISCONSIN, U.S.A. |
SERIES OR ASSEMBLY NUMBER: | | |
SERIAL NUMBER PREFIX: | | |
YEAR INTRODUCED: | | 1952 |
YEAR DISCONTINUED: | | 1953 |
ENGINE DISPLACEMENT: | | 4.48 cu. in. (73.4 cc) |
NUMBER OF CYLINDERS: | | 1 |
CYLINDER BORE: | | 1.875 in. (47.6 mm) |
PISTON STROKE: | | 1.625 in. (41.27 mm) |
PISTON RING THICKNESS: | | |
CYLINDER TYPE: | | Aluminum with cast iron sleeve |
INTAKE METHOD: | | Reed valves |
MANUFACTURER ADVERTISED H.P.: | | 3 |
WEIGHT: | | 30 lbs. with 20 in. bar 7 chain
13.6 kg with 53 cm bar & chain |
OPERATOR CONFIGURATION: | | One Man operation |
HANDLEBAR SYSTEM: | | Rigid |
CHAIN BRAKE: | | none |
CLUTCH: | | Centrifugal |
DRIVE TYPE: | | Gilmer Belt reduction, ratio 3:1 |
CONSTRUCTION: | | Die cast aluminum |
MAGNETO TYPE: | | Wico |
CARBURETOR: | | Carter float type, pressurized fuel tank |
MAJOR REPAIR KIT: | | nla |
MINOR REPAIR KIT: | | nla |
AIR FILTER SYSTEM: | | Skinner ribbon element |
STARTER TYPE: | | Armstrong "Bulldog" automatic rewind |
OIL PUMP: | | Manual |
MAXIMUM ENGINE RPM: | | 4,500 |
IDLE RPM: | | |
IGNITION TIMING: | | 35 degrees before TDC |
BREAKER POINT SETTING: | | 0.020 in. (0.51 mm) |
FLYWHEEL/COIL AIR GAP: | | 0.070 to 0.017 in. |
SPARK PLUG TYPE: | | Champion F8 |
SPARK PLUG GAP: | | 0.025 in. (0.63 mm) |
CRANKSHAFT MAIN BEARINGS: | | Ball and caged needle roller |
FUEL TANK CAPACITY: | | 1 U.S. Quart = 32 0z. (946 ml) |
FUEL OIL RATIO: | | 1/2 pint to 1 gallon |
RECOMMENDED FUEL OCTANE: | | Regular |
MIX OIL SPECIFICATION: | | SAE 30 non detergent |
CHAIN PITCH: | | 1/2 in. |
CHAIN TYPE: | | Oregon |
BAR MOUNT PATTERN: | | |
SHORTEST GUIDE BAR SUPPLIED: | | 14 in. (35 cm) |
LONGEST GUIDE BAR SUPPLIED: | | 30 in. (76 cm) |
COLOUR SCHEME: | | Green enamel |
PAINT CODES: | | |
ILLUSTRATED PARTS LIST: | | |
SERVICE MANUAL: | | |