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Model: 40

MANUFACTURED BY:
HUSQVARNA VAPENFABRIKS AB
HUSKVARNA, SWEDEN
SERIES OR ASSEMBLY NUMBER:
SERIAL NUMBER PREFIX:
YEAR INTRODUCED:
1978
YEAR DISCONTINUED:
1998
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:

COMMENTS:
CSA 1991

 

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