MANUFACTURED BY: |  | STRUNK MANUFACTURING CO. |
 | | COATESVILLE, PENNSYLVANIA, U.S.A. |
SERIES OR ASSEMBLY NUMBER: | | |
SERIAL NUMBER PREFIX: | | |
YEAR INTRODUCED: | | 1957 |
YEAR DISCONTINUED: | | |
ENGINE DISPLACEMENT: | | 5.1 cu.in. (83.5cc) |
NUMBER OF CYLINDERS: | | 1 |
CYLINDER BORE: | | 2.0 in. (50.8mm) |
PISTON STROKE: | | 1.625 in. (41mm) |
PISTON RING THICKNESS: | | |
CYLINDER TYPE: | | Aluminum with cast iron sleeve |
INTAKE METHOD: | | Reed valves |
MANUFACTURER ADVERTISED H.P.: | | |
WEIGHT: | | 27 lbs. (12.2 kg) powerhead only |
OPERATOR CONFIGURATION: | | One Man operation |
HANDLEBAR SYSTEM: | | Rigid |
CHAIN BRAKE: | | none |
CLUTCH: | | Centrifugal |
DRIVE TYPE: | | Direct |
CONSTRUCTION: | | Sand cast aluminum |
MAGNETO TYPE: | | Wico |
CARBURETOR: | | Tillotson HP series |
MAJOR REPAIR KIT: | | |
MINOR REPAIR KIT: | | |
AIR FILTER SYSTEM: | | Skinner ribbon element |
STARTER TYPE: | | Fairbanks Morse automatic rewind |
OIL PUMP: | | Automatic with manual override |
MAXIMUM ENGINE RPM: | | 4,500 |
IDLE RPM: | | |
IGNITION TIMING: | | 0.15625 in. (3.96 mm) before TDC |
BREAKER POINT SETTING: | | 0.020 in. (0.51 mm) |
FLYWHEEL/COIL AIR GAP: | | Position is fixed |
SPARK PLUG TYPE: | | Champion J12J |
SPARK PLUG GAP: | | 0.040 in. (1.01 mm) before TDC |
CRANKSHAFT MAIN BEARINGS: | | Ball and caged needle roller |
FUEL TANK CAPACITY: | | 48 fl. oz. (1.419 litres) |
FUEL OIL RATIO: | | 1/2 pint to 1 gallon = 16:1 |
RECOMMENDED FUEL OCTANE: | | Regular grade 72 to 83 |
MIX OIL SPECIFICATION: | | SAE 30 non-detergent |
CHAIN PITCH: | | 3/8 in. |
CHAIN TYPE: | | |
BAR MOUNT PATTERN: | | |
SHORTEST GUIDE BAR SUPPLIED: | | 16 in. (40 cm) |
LONGEST GUIDE BAR SUPPLIED: | | 19 in. (48 cm) |
COLOUR SCHEME: | | Red enamel |
PAINT CODES: | | |
ILLUSTRATED PARTS LIST: | | |
SERVICE MANUAL: | | |