MANUFACTURED BY: |  | DOLMAR MASCHINEN-FABRIK GmbH & Co. |
 | | HAMBURG, GERMANY |
SERIES OR ASSEMBLY NUMBER: | | 144 |
YEAR INTRODUCED: | | 1972 |
YEAR DISCONTINUED: | | 1975 |
ENGINE DISPLACEMENT: | | 90 cc (5.5 cu. in.) |
NUMBER OF CYLINDERS: | | 1 |
CYLINDER BORE: | | 52 mm (2.047 in.) |
PISTON STROKE: | | 42 mm (1.654 in.) |
PISTON RING THICKNESS: | | |
CYLINDER TYPE: | | Aluminum with chrome plated bore |
INTAKE METHOD: | | Piston ported |
MANUFACTURER ADVERTISED H.P.: | | 5.8 DIN |
WEIGHT: | | 12.2 kg |
OPERATOR CONFIGURATION: | | One Man operation |
HANDLEBAR SYSTEM: | | Rigid |
CHAIN BRAKE: | | none |
CLUTCH: | | Centrifugal |
DRIVE TYPE: | | Direct |
CONSTRUCTION: | | Die cast magnesium |
MAGNETO TYPE: | | Bosch |
CARBURETOR: | | Tillotson HS-149A
Walbro SDC type |
MAJOR REPAIR KIT: | | RK-23HS
K10-SDC |
MINOR REPAIR KIT: | | DG05HS/T
D10-SDC |
AIR FILTER SYSTEM: | | Nylon mesh element |
STARTER TYPE: | | Dolmar automatic rewind |
OIL PUMP: | | Automatic, worm gear driven off crankshaft |
MAXIMUM ENGINE RPM: | | 7,500 |
IDLE RPM: | | |
IGNITION TIMING: | | 2.7 to 3.1 mm (0.106 to 0.122 in.) before TDC |
BREAKER POINT SETTING: | | 0.3 to 0.4 mm (0.012 to 0.016 in.) |
FLYWHEEL/COIL AIR GAP: | | Fixed position under flywheel |
SPARK PLUG TYPE: | | Bosch WKA225 T3 |
SPARK PLUG GAP: | | 0.5 mm (0.020 in.) |
CRANKSHAFT MAIN BEARINGS: | | Ball |
FUEL TANK CAPACITY: | | |
FUEL OIL RATIO: | | 25:1 |
RECOMMENDED FUEL OCTANE: | | Regular |
MIX OIL SPECIFICATION: | | Two-cycle mix oil |
CHAIN PITCH: | | 3/8 in. or .404 in. |
CHAIN TYPE: | | |
BAR MOUNT PATTERN: | | 19 link |
SHORTEST GUIDE BAR SUPPLIED: | | |
LONGEST GUIDE BAR SUPPLIED: | | |
COLOUR SCHEME: | | Dolmar Orange enamel with Black rear handle |
PAINT CODES: | | |
ILLUSTRATED PARTS LIST: | | |
SERVICE MANUAL: | | |