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Model: 3120

MANUFACTURED BY:
HUSQVARNA VAPENFABRIKS AB
HUSKVARNA, SWEDEN
SERIES OR ASSEMBLY NUMBER:
965-9607-01
SERIAL NUMBER PREFIX:
YEAR INTRODUCED:
1988
YEAR DISCONTINUED:
ENGINE DISPLACEMENT:
118.7 ccm (7.2 cu. in.)
NUMBER OF CYLINDERS:
1
CYLINDER BORE:
60 mm (2.36 in.)
PISTON STROKE:
42 mm (1.65 in.)
PISTON RING THICKNESS:
2 rings used, 503-2890-26
CYLINDER TYPE:
Aluminum with CHROME plated bore
INTAKE METHOD:
Piston ported
MANUFACTURER ADVERTISED H.P.:
not advertised
WEIGHT:
10.4 kg powerhead only
OPERATOR CONFIGURATION:
One Man operation
HANDLEBAR SYSTEM:
Anti-Vibration
CHAIN BRAKE:
Inertia activated
CLUTCH:
Centrifugal, 3 metal shoes
DRIVE TYPE:
Direct
CONSTRUCTION:
Die cast MAGNESIUM, injection molded polymer
MAGNETO TYPE:
Electronic
CARBURETOR:
Walbro WG-7, 8 503-2812-18
MAJOR REPAIR KIT:
K12-WG
MINOR REPAIR KIT:
D12-WG, 503-5374-02
AIR FILTER SYSTEM:
Cellulose fiber element
STARTER TYPE:
Husqvarna automatic rewind, 2 pawls
OIL PUMP:
Automatic, gear driven, manual override
MAXIMUM ENGINE RPM:
11,000 no load, 9,000 full load
IDLE RPM:
2,300 to 2,500
IGNITION TIMING:
fixed
BREAKER POINT SETTING:
none
FLYWHEEL/COIL AIR GAP:
0.011 to 0.015 in. (0.27 to 0.38 mm
SPARK PLUG TYPE:
Champion RCJ7Y, NGK BPMR7A
SPARK PLUG GAP:
0.5 mm (0.020 in.)
CRANKSHAFT MAIN BEARINGS:
Ball
FUEL TANK CAPACITY:
1250 ml
FUEL OIL RATIO:
50:1
RECOMMENDED FUEL OCTANE:
not less than an octane rating of 90 RON/87AKI
MIX OIL SPECIFICATION:
Husqvarna mix oil
CHAIN PITCH:
.404 in. pitch or 3/8 in. pitch
CHAIN TYPE:
Carlton B2LM
BAR MOUNT PATTERN:
17 link
SHORTEST GUIDE BAR SUPPLIED:
60 cm
LONGEST GUIDE BAR SUPPLIED:
152 cm (60 in.)
COLOUR SCHEME:
Husqvarna Orange
PAINT CODES:
ILLUSTRATED PARTS LIST:
SERVICE MANUAL:

COMMENTS:
Still being manufactured in 2023




 

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