MANUFACTURED BY: |  | JONSEREDS FABRIKERS AB |
 | | PARTILLE, SWEDEN |
SERIES OR ASSEMBLY NUMBER: | | |
SERIAL NUMBER PREFIX: | | |
YEAR INTRODUCED: | | 1986 |
YEAR DISCONTINUED: | | 1988 |
ENGINE DISPLACEMENT: | | 34.4 ccm (2.1 cu. in.) |
NUMBER OF CYLINDERS: | | 1 |
CYLINDER BORE: | | 36.5mm (1.44 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 kW) |
WEIGHT: | | 4.7 kg (10.2 lbs.) powerhead only |
OPERATOR CONFIGURATION: | | One Man operation |
HANDLEBAR SYSTEM: | | Anti-vibration |
CHAIN BRAKE: | | Mechanical |
CLUTCH: | | Centrifugal, 2 metal shoes |
DRIVE TYPE: | | Direct |
CONSTRUCTION: | | Die cast Magnesium, injection molded polymer |
MAGNETO TYPE: | | Phelon electronic |
CARBURETOR: | | Walbro WT-79-1, WT-98-1 |
MAJOR REPAIR KIT: | | K20-WAT |
MINOR REPAIR KIT: | | D10-WAT |
AIR FILTER SYSTEM: | | Cellulose fiber element |
STARTER TYPE: | | Automatic rewind |
OIL PUMP: | | Automatic worm gear driven |
MAXIMUM ENGINE RPM: | | 6,500, 12,000 free |
IDLE RPM: | | 2,900 |
IGNITION TIMING: | | 25 degrees before TDC |
BREAKER POINT SETTING: | | none |
FLYWHEEL/COIL AIR GAP: | | 0.41 mm (0.016 in.) |
SPARK PLUG TYPE: | | Champion RCJ7Y, Bosch WS7F |
SPARK PLUG GAP: | | 0.5mm (0.020 in.) |
CRANKSHAFT MAIN BEARINGS: | | Caged needle roller (Torrington) |
FUEL TANK CAPACITY: | | 300 ml (10.1 fl. oz.) |
FUEL OIL RATIO: | | 40:1 |
RECOMMENDED FUEL OCTANE: | | Regular |
MIX OIL SPECIFICATION: | | Two-cycle chain saw mix oil |
CHAIN PITCH: | | 3/8 in. low profile |
CHAIN TYPE: | | Oregon 91SG |
BAR MOUNT PATTERN: | | 01 link |
SHORTEST GUIDE BAR SUPPLIED: | | 12 in. (30cm) |
LONGEST GUIDE BAR SUPPLIED: | | 16 in. (40cm) |
COLOUR SCHEME: | | Red and Black enamel |
PAINT CODES: | | |
ILLUSTRATED PARTS LIST: | | |
SERVICE MANUAL: | | |