MANUFACTURED BY: |  | HUSQVARNA VAPENFABRIKS AB |
 | | HUSKVARNA, SWEDEN |
SERIES OR ASSEMBLY NUMBER: | | |
SERIAL NUMBER PREFIX: | | |
YEAR INTRODUCED: | | 1975 |
YEAR DISCONTINUED: | | |
ENGINE DISPLACEMENT: | | 34 ccm (2.1 cu. in.) |
NUMBER OF CYLINDERS: | | 1 |
CYLINDER BORE: | | 36.5mm (1.4375 in.) |
PISTON STROKE: | | 32.5mm (1.28 in.) |
PISTON RING THICKNESS: | | |
CYLINDER TYPE: | | Aluminum with Chrome plated bore |
INTAKE METHOD: | | Piston ported |
MANUFACTURER ADVERTISED H.P.: | | 1.8/1.3 hk/kW |
WEIGHT: | | 4.4 kg with 30 cm bar & chain
9.7 lbs. with 12 in. bar & chain |
OPERATOR CONFIGURATION: | | One Man operation |
HANDLEBAR SYSTEM: | | Rigid |
CHAIN BRAKE: | | Mechanical |
CLUTCH: | | Centrifugal |
DRIVE TYPE: | | Direct |
CONSTRUCTION: | | Die cast Magnesium and Aluminum |
MAGNETO TYPE: | | Flywheel Breaker Point |
CARBURETOR: | | Tillotson HU-4A, B
Walbro WA-8 |
MAJOR REPAIR KIT: | | RK-14HU for HU-4B, RK-15HU for HU-4A
K10-WAT |
MINOR REPAIR KIT: | | DG-2HU
D10-WAT |
AIR FILTER SYSTEM: | | Cellulose fiber |
STARTER TYPE: | | Automatic rewind |
OIL PUMP: | | Manual |
MAXIMUM ENGINE RPM: | | 7000 to 9500 |
IDLE RPM: | | 2,500 prm |
IGNITION TIMING: | | fixed |
BREAKER POINT SETTING: | | .038mm (0.015 in. |
FLYWHEEL/COIL AIR GAP: | | 0.016 in. (0.41 mm) |
SPARK PLUG TYPE: | | Champion CJ6 |
SPARK PLUG GAP: | | 0.63mm (0.025 in.) |
CRANKSHAFT MAIN BEARINGS: | | Caged needle roller |
FUEL TANK CAPACITY: | | 300ml (10 oz.) |
FUEL OIL RATIO: | | 40:1 |
RECOMMENDED FUEL OCTANE: | | Regular |
MIX OIL SPECIFICATION: | | Two-stroke chain saw mix oil, Husqvarna mix oil |
CHAIN PITCH: | | 3/8 in low profile |
CHAIN TYPE: | | Oregon 91SG |
BAR MOUNT PATTERN: | | 02 link |
SHORTEST GUIDE BAR SUPPLIED: | | 30cm (12 in.) |
LONGEST GUIDE BAR SUPPLIED: | | 40cm (16 in.) |
COLOUR SCHEME: | | Husqvarna Orange |
PAINT CODES: | | |
ILLUSTRATED PARTS LIST: | | |
SERVICE MANUAL: | | |