MANUFACTURED BY: |  | HUSQVARNA VAPENFABRIKS AB |
 | | HUSKVARNA, SWEDEN |
SERIES OR ASSEMBLY NUMBER: | | |
SERIAL NUMBER PREFIX: | | |
YEAR INTRODUCED: | | 1978 |
YEAR DISCONTINUED: | | 1991 |
ENGINE DISPLACEMENT: | | 40ccm (2.4 cu. in.) |
NUMBER OF CYLINDERS: | | 1 |
CYLINDER BORE: | | 40mm (1.575 in.) |
PISTON STROKE: | | 32mm (1.260 in.) |
PISTON RING THICKNESS: | | |
CYLINDER TYPE: | | Aluminum with Chrome plated bore |
INTAKE METHOD: | | Piston ported |
MANUFACTURER ADVERTISED H.P.: | | 2.5 (1.8 kW) |
WEIGHT: | | 5.6 kg with 32 cm bar & chain
12.3 lbs. with 13 in. bar & chain |
OPERATOR CONFIGURATION: | | One Man operation |
HANDLEBAR SYSTEM: | | Anti-vibration |
CHAIN BRAKE: | | Mechaincal |
CLUTCH: | | Centrifugal |
DRIVE TYPE: | | Direct |
CONSTRUCTION: | | Die cast Magnesium |
MAGNETO TYPE: | | Breaker point flywheel ignition system |
CARBURETOR: | | Walbro HDC series
ZAMA C1Q-EL1 |
MAJOR REPAIR KIT: | | K10-HDC for Walbro
RB-45 for ZAMA |
MINOR REPAIR KIT: | | D10-HDC for Walbro
GND-33 for ZAMA |
AIR FILTER SYSTEM: | | Nylon mesh cartridge |
STARTER TYPE: | | Husqvarna automatic rewind |
OIL PUMP: | | Automatic, adjustable |
MAXIMUM ENGINE RPM: | | 9,000, 12,500 max free after break in. |
IDLE RPM: | | 2,500 |
IGNITION TIMING: | | Points should begin to open when mark on flywheel is 2.5mm (0.1 in.) from upper edge of lower coil lamination leg. Use test light or continuity meter for setting. |
BREAKER POINT SETTING: | | 0.3 to 0.4mm (0.012 to 0.016 in.) |
FLYWHEEL/COIL AIR GAP: | | 0.30 to 0.35 mm (0.012 to 0.016 in.) |
SPARK PLUG TYPE: | | Bosch WS7F, Champion RCJ7Y |
SPARK PLUG GAP: | | 0.5mm (0.020 in.) |
CRANKSHAFT MAIN BEARINGS: | | Ball |
FUEL TANK CAPACITY: | | 500 ml (1.05 pints) |
FUEL OIL RATIO: | | 50:1 |
RECOMMENDED FUEL OCTANE: | | Regular |
MIX OIL SPECIFICATION: | | Two-stroke chain saw mix oil |
CHAIN PITCH: | | .325 in. |
CHAIN TYPE: | | Oregon 20LP, 21LP |
BAR MOUNT PATTERN: | | 01 link |
SHORTEST GUIDE BAR SUPPLIED: | | 32 cm (13 in.) |
LONGEST GUIDE BAR SUPPLIED: | | 45 cm (18 in.) |
COLOUR SCHEME: | | Husqvarna Orange enamel |
PAINT CODES: | | |
ILLUSTRATED PARTS LIST: | | |
SERVICE MANUAL: | | |