MANUFACTURED BY: |  | HUSQVARNA VAPENFABRIKS AB |
 | | HUSKVARNA, SWEDEN |
SERIES OR ASSEMBLY NUMBER: | | |
SERIAL NUMBER PREFIX: | | |
YEAR INTRODUCED: | | 1978 |
YEAR DISCONTINUED: | | |
ENGINE DISPLACEMENT: | | 61.5cc (3.75 cu. in.) |
NUMBER OF CYLINDERS: | | 1 |
CYLINDER BORE: | | 48mm (1.89 in.) |
PISTON STROKE: | | 34mm (1.34 in.) |
PISTON RING THICKNESS: | | |
CYLINDER TYPE: | | Aluminum with chrome plated bore |
INTAKE METHOD: | | Piston ported |
MANUFACTURER ADVERTISED H.P.: | | 3.6/2.6 hk/kW |
WEIGHT: | | 6.7 kg with 38 cm bar & chain |
OPERATOR CONFIGURATION: | | One Man operation |
HANDLEBAR SYSTEM: | | Anti-vibration |
CHAIN BRAKE: | | Mechanical |
CLUTCH: | | Centrifugal |
DRIVE TYPE: | | Direct |
CONSTRUCTION: | | Die cast magnesium |
MAGNETO TYPE: | | Electronic |
CARBURETOR: | | Tillotson HS-163A series or
Walbro WS-17A, B series |
MAJOR REPAIR KIT: | | RK-23HS
K10-WS |
MINOR REPAIR KIT: | | DG-5HS/T
D10-WS |
AIR FILTER SYSTEM: | | Nylon mesh cartridge |
STARTER TYPE: | | Husqvarna automatic rewind |
OIL PUMP: | | Automatic, adjustable |
MAXIMUM ENGINE RPM: | | 8,300. 12,000 max free after break in. |
IDLE RPM: | | 2,400 |
IGNITION TIMING: | | fixed |
BREAKER POINT SETTING: | | none |
FLYWHEEL/COIL AIR GAP: | | 0.30 mm (0.012 in.) |
SPARK PLUG TYPE: | | Bosch WS7F or Champion CJ7Y |
SPARK PLUG GAP: | | 0.5mm (0.020 in.) |
CRANKSHAFT MAIN BEARINGS: | | Ball |
FUEL TANK CAPACITY: | | 750 ml (25.3 fl. oz.) |
FUEL OIL RATIO: | | 50:1 |
RECOMMENDED FUEL OCTANE: | | Regular |
MIX OIL SPECIFICATION: | | Two-stroke chain saw mix oil or Husqvarna oil |
CHAIN PITCH: | | 3/8 in. |
CHAIN TYPE: | | 73LG |
BAR MOUNT PATTERN: | | 17 link |
SHORTEST GUIDE BAR SUPPLIED: | | 40cm (16 in.) |
LONGEST GUIDE BAR SUPPLIED: | | 71cm (28 in.) |
COLOUR SCHEME: | | Husqvarna Orange with White top cover |
PAINT CODES: | | |
ILLUSTRATED PARTS LIST: | | |
SERVICE MANUAL: | | |