MANUFACTURED BY: |  | DOLMAR MASCHINEN-FABRIK GmbH & Co. |
 | | HAMBURG, GERMANY |
SERIES OR ASSEMBLY NUMBER: | | 123 |
SERIAL NUMBER PREFIX: | | |
YEAR INTRODUCED: | | 1986 |
YEAR DISCONTINUED: | | |
ENGINE DISPLACEMENT: | | 70 cc (4.2 cu. in.) |
NUMBER OF CYLINDERS: | | 1 |
CYLINDER BORE: | | 47 mm (1.850 in.) |
PISTON STROKE: | | 40 mm (1.575 in.) |
PISTON RING THICKNESS: | | |
CYLINDER TYPE: | | Aluminum with chrome plated bore |
INTAKE METHOD: | | Piston ported |
MANUFACTURER ADVERTISED H.P.: | | 3.5 kW (8 HP SAE) |
WEIGHT: | | 8.9 kg with 43 cm bar & chain
19.6 lbs. with 17 in. bar & chain |
OPERATOR CONFIGURATION: | | One Man operation |
HANDLEBAR SYSTEM: | | Anti-vibration |
CHAIN BRAKE: | | Yes |
CLUTCH: | | Centrifugal |
DRIVE TYPE: | | Direct |
CONSTRUCTION: | | Die cast magnesium |
MAGNETO TYPE: | | Electronic |
CARBURETOR: | | Tillotson HS-187A series |
MAJOR REPAIR KIT: | | RK-23HS |
MINOR REPAIR KIT: | | DG-5HS |
AIR FILTER SYSTEM: | | Nylon mesh element |
STARTER TYPE: | | Dolmar automatic rewind |
OIL PUMP: | | Automatic reciprocating, adjustable |
MAXIMUM ENGINE RPM: | | 7,500 |
IDLE RPM: | | |
IGNITION TIMING: | | fixed |
BREAKER POINT SETTING: | | none |
FLYWHEEL/COIL AIR GAP: | | Fixed position |
SPARK PLUG TYPE: | | Bosch WSR6F (oldWKA200 TR6) |
SPARK PLUG GAP: | | 0.5 mm (0.020 in. |
CRANKSHAFT MAIN BEARINGS: | | Ball |
FUEL TANK CAPACITY: | | 0.8 litres (27 oz.) |
FUEL OIL RATIO: | | 40:1 |
RECOMMENDED FUEL OCTANE: | | Regular grade |
MIX OIL SPECIFICATION: | | Dolmar two-cycle mix oil |
CHAIN PITCH: | | 3/8 in., .375" |
CHAIN TYPE: | | |
BAR MOUNT PATTERN: | | 19 link |
SHORTEST GUIDE BAR SUPPLIED: | | 43cm (17 in.) |
LONGEST GUIDE BAR SUPPLIED: | | 60cm (24 in.) |
COLOUR SCHEME: | | Dolmar Orange enamel with Black top cover |
PAINT CODES: | | |
ILLUSTRATED PARTS LIST: | | |
SERVICE MANUAL: | | |