MANUFACTURED BY: |  | MOTOR UNION |
 | | KAPLICE, CZECHOSLOVAKIA |
SERIES OR ASSEMBLY NUMBER: | | BD-1 S 68 A |
SERIAL NUMBER PREFIX: | | |
YEAR INTRODUCED: | | 1950 |
YEAR DISCONTINUED: | | 1966 |
ENGINE DISPLACEMENT: | | 248 ccm (15.07 cu. in.) |
NUMBER OF CYLINDERS: | | 1 |
CYLINDER BORE: | | 68 mm |
PISTON STROKE: | | 68 mm |
PISTON RING THICKNESS: | | |
CYLINDER TYPE: | | Aluminum with Chrome plated bore |
INTAKE METHOD: | | Piston Ported |
MANUFACTURER ADVERTISED H.P.: | | 5.5 hp |
WEIGHT: | | 20.75 Kg powerhead only |
OPERATOR CONFIGURATION: | | Two Man |
HANDLEBAR SYSTEM: | | Rigid |
CHAIN BRAKE: | | none |
CLUTCH: | | Automatic centrifugall |
DRIVE TYPE: | | Gear reduction |
CONSTRUCTION: | | Die cast Magnesium |
MAGNETO TYPE: | | PAL 1253 flywheel type |
CARBURETOR: | | Jikov 2920 PS, float type |
MAJOR REPAIR KIT: | | |
MINOR REPAIR KIT: | | |
AIR FILTER SYSTEM: | | Wire screen |
STARTER TYPE: | | Wind rope on flywheel pullye |
OIL PUMP: | | Automatic, chain driven |
MAXIMUM ENGINE RPM: | | 3,800 |
IDLE RPM: | | |
IGNITION TIMING: | | 5.5 mm BTDC |
BREAKER POINT SETTING: | | |
FLYWHEEL/COIL AIR GAP: | | |
SPARK PLUG TYPE: | | Bosch M145 T1 |
SPARK PLUG GAP: | | 0.51 mm (0.020 in.) |
CRANKSHAFT MAIN BEARINGS: | | Ball |
FUEL TANK CAPACITY: | | 2.5 Litres |
FUEL OIL RATIO: | | 20:1 |
RECOMMENDED FUEL OCTANE: | | Regular automotive |
MIX OIL SPECIFICATION: | | 2-cycle type |
CHAIN PITCH: | | 20 mm (.787 in.) |
CHAIN TYPE: | | Dolmar scratcher |
BAR MOUNT PATTERN: | | |
SHORTEST GUIDE BAR SUPPLIED: | | 60 cm (24 in.) |
LONGEST GUIDE BAR SUPPLIED: | | 100 cm (40 in.) |
COLOUR SCHEME: | | Army Green, civilian models Orange or no paint at all |
PAINT CODES: | | |
ILLUSTRATED PARTS LIST: | | |
SERVICE MANUAL: | | |