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Model: 120Si

MANUFACTURED BY:
DOLMAR Maschinen-Fabrik GmbH & Co.
HAMBURG, GERMANY
SERIES OR ASSEMBLY NUMBER:
120
YEAR INTRODUCED:
1987
YEAR DISCONTINUED:
ENGINE DISPLACEMENT:
68 cc (4.1 cu. in.)
NUMBER OF CYLINDERS:
1
CYLINDER BORE:
49 mm (1.93 in.)
PISTON STROKE:
36 mm (1.42 in.)
PISTON RING THICKNESS:
CYLINDER TYPE:
Aluminum with chrome plated bore
INTAKE METHOD:
Piston ported
MANUFACTURER ADVERTISED H.P.:
4.8 DIN
WEIGHT:
7.3 kg (16.09 lbs.)
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-236A
MAJOR REPAIR KIT:
RK-27HS
MINOR REPAIR KIT:
DG-9HS
AIR FILTER SYSTEM:
Nylon mesh element
STARTER TYPE:
Dolmar automatic rewind
OIL PUMP:
Automatic, gear driven, adjustable
MAXIMUM ENGINE RPM:
8,500 under load, 12,500 free speed
IDLE RPM:
2,400
IGNITION TIMING:
fixed
BREAKER POINT SETTING:
none
FLYWHEEL/COIL AIR GAP:
0.15 mm (0.038 in.)
SPARK PLUG TYPE:
Bosch WSR6F
SPARK PLUG GAP:
0.5 mm (0.020 in.)
CRANKSHAFT MAIN BEARINGS:
Ball
FUEL TANK CAPACITY:
700 ml (23.6 fl. oz.)
FUEL OIL RATIO:
40:1
RECOMMENDED FUEL OCTANE:
Regular grade
MIX OIL SPECIFICATION:
Dolmar two-cycle chain saw mix oil
CHAIN PITCH:
3/8 in.
CHAIN TYPE:
Chisel
BAR MOUNT PATTERN:
01 link
SHORTEST GUIDE BAR SUPPLIED:
40cm
LONGEST GUIDE BAR SUPPLIED:
60cm
COLOUR SCHEME:
PAINT CODES:
ILLUSTRATED PARTS LIST:
SERVICE MANUAL:

COMMENTS:



 

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