MANUFACTURED BY: |  | HUSQVARNA VAPENFABRIKS AB |
 | | HUSKVARNA, SWEDEN |
SERIES OR ASSEMBLY NUMBER: | | |
SERIAL NUMBER PREFIX: | | |
YEAR INTRODUCED: | | 1990 |
YEAR DISCONTINUED: | | |
ENGINE DISPLACEMENT: | | 51cc (3.1 cu. in.) |
NUMBER OF CYLINDERS: | | 1 |
CYLINDER BORE: | | 45 mm (1.77 in.) |
PISTON STROKE: | | 32 mm (1.26 in.) |
PISTON RING THICKNESS: | | |
CYLINDER TYPE: | | Aluminum with Chrome plated bore |
INTAKE METHOD: | | Piston ported |
MANUFACTURER ADVERTISED H.P.: | | 3.1 hp (2.3kW) |
WEIGHT: | | 5.2kg (11.4 lbs.) powerhead only |
OPERATOR CONFIGURATION: | | One Man operation |
HANDLEBAR SYSTEM: | | Anti-vibration |
CHAIN BRAKE: | | Inertia activated |
CLUTCH: | | Centrifugal |
DRIVE TYPE: | | Direct |
CONSTRUCTION: | | Injection molded Polymer, die cast Magnesium |
MAGNETO TYPE: | | Electronic Electrolux ET |
CARBURETOR: | | Walbro WT-170 series
ZAMA C1Q-EL6, C1Q-EL7 |
MAJOR REPAIR KIT: | | K20-WAT for Walbro
RB-45 for ZAMA |
MINOR REPAIR KIT: | | D10-WAT for Walbro
GND-33 for ZAMA |
AIR FILTER SYSTEM: | | Nylon mesh cartridge |
STARTER TYPE: | | Automatic rewind |
OIL PUMP: | | Automatic |
MAXIMUM ENGINE RPM: | | 12,500 max free with bar and chain installed after break in, 9,000 under load. |
IDLE RPM: | | 2,500 |
IGNITION TIMING: | | fixed |
BREAKER POINT SETTING: | | none |
FLYWHEEL/COIL AIR GAP: | | 0.30 mm (0.012 in.) |
SPARK PLUG TYPE: | | Bosch WSR7F/WS7F, NGK BPMR7A, Champion RCJ7Y |
SPARK PLUG GAP: | | 0.50 mm (0.020 in.) |
CRANKSHAFT MAIN BEARINGS: | | Ball |
FUEL TANK CAPACITY: | | 600ml (20.2 fl. oz.) |
FUEL OIL RATIO: | | 50:1 |
RECOMMENDED FUEL OCTANE: | | Regular grade |
MIX OIL SPECIFICATION: | | Electrolux approved oil, Husqvarna mix oil |
CHAIN PITCH: | | .325 in. |
CHAIN TYPE: | | |
BAR MOUNT PATTERN: | | 01 link |
SHORTEST GUIDE BAR SUPPLIED: | | 33cm (13 in.) |
LONGEST GUIDE BAR SUPPLIED: | | 51cm (20 in.) |
COLOUR SCHEME: | | Husqvarna Orange |
PAINT CODES: | | |
ILLUSTRATED PARTS LIST: | | |
SERVICE MANUAL: | | |