MANUFACTURED BY: |  | DISSTON HENRY & SONS INC. |
 | | PHILADELPHIA, PENNSYLVANIA, U.S.A. |
SERIES OR ASSEMBLY NUMBER: | | |
SERIAL NUMBER PREFIX: | | |
YEAR INTRODUCED: | | |
YEAR DISCONTINUED: | | 1948 |
ENGINE DISPLACEMENT: | | 1950 |
NUMBER OF CYLINDERS: | | 2 (vertical) |
CYLINDER BORE: | | |
PISTON STROKE: | | |
PISTON RING THICKNESS: | | |
CYLINDER TYPE: | | |
INTAKE METHOD: | | Reed valves |
MANUFACTURER ADVERTISED H.P.: | | 12 |
WEIGHT: | | 97 lbs. with 24 in. bar, chain & tailstock
44 kg with 61 cm bar, chain & tailstock |
OPERATOR CONFIGURATION: | | Two Man operation |
HANDLEBAR SYSTEM: | | Rigid |
CHAIN BRAKE: | | none |
CLUTCH: | | Manual |
DRIVE TYPE: | | Bevel gear transmission, 2.57:1 ratio |
CONSTRUCTION: | | Die cast aluminum |
MAGNETO TYPE: | | Fairbanks Morse FM-JH2B |
CARBURETOR: | | Tillotson AJ series |
MAJOR REPAIR KIT: | | |
MINOR REPAIR KIT: | | |
AIR FILTER SYSTEM: | | Skinner ribbon elements (2) |
STARTER TYPE: | | Magnapull automatic rewind |
OIL PUMP: | | Automatic, built into transmission cover |
MAXIMUM ENGINE RPM: | | 4,000 with mechanical governor |
IDLE RPM: | | |
IGNITION TIMING: | | |
BREAKER POINT SETTING: | | 0.012 to 0.013 in. (0.3 to 0.33mm) |
FLYWHEEL/COIL AIR GAP: | | |
SPARK PLUG TYPE: | | Champion J7J (originally J9J) |
SPARK PLUG GAP: | | 0.023 to 0.025 in. (0.58 to 0.63mm) |
CRANKSHAFT MAIN BEARINGS: | | Ball |
FUEL TANK CAPACITY: | | |
FUEL OIL RATIO: | | 3/4 pint to 1 gallon |
RECOMMENDED FUEL OCTANE: | | 72 minimum |
MIX OIL SPECIFICATION: | | SAE 30 |
CHAIN PITCH: | | 3/4 in. |
CHAIN TYPE: | | Disston |
BAR MOUNT PATTERN: | | |
SHORTEST GUIDE BAR SUPPLIED: | | 24 in. (61cm) |
LONGEST GUIDE BAR SUPPLIED: | | 84 in. (213cm) |
COLOUR SCHEME: | | Disston Orange enamel |
PAINT CODES: | | |
ILLUSTRATED PARTS LIST: | | |
SERVICE MANUAL: | | |