MANUFACTURED BY: |  | JONSEREDS FABRIKERS AB |
 |  | PARTILLE, SWEDEN |
SERIES OR ASSEMBLY NUMBER: |  | |
SERIAL NUMBER PREFIX: |  | |
YEAR INTRODUCED: |  | 1970 |
YEAR DISCONTINUED: |  | 1980 |
ENGINE DISPLACEMENT: |  | 80ccm (4.8 cu. in.) |
NUMBER OF CYLINDERS: |  | 1 |
CYLINDER BORE: |  | 52mm (2.047 in.) |
PISTON STROKE: |  | 38mm (1.496 in.) |
PISTON RING THICKNESS: |  | |
CYLINDER TYPE: |  | Aluminum with chrome plated bore |
INTAKE METHOD: |  | Piston ported |
MANUFACTURER ADVERTISED H.P.: |  | 3.53kW @ 8000 rpm |
WEIGHT: |  | 7.2 kg (16 lbs.) powerhead only |
OPERATOR CONFIGURATION: |  | One Man operation |
HANDLEBAR SYSTEM: |  | Anti-vibration |
CHAIN BRAKE: |  | none |
CLUTCH: |  | Centrifugal |
DRIVE TYPE: |  | Direct |
CONSTRUCTION: |  | Die cast magnesium |
MAGNETO TYPE: |  | Pagani |
CARBURETOR: |  | Tillotson HS-101B series |
MAJOR REPAIR KIT: |  | RK-23HS |
MINOR REPAIR KIT: |  | DG-5HS/T |
AIR FILTER SYSTEM: |  | Nylon mesh cylinder |
STARTER TYPE: |  | Jonsereds automatic rewind |
OIL PUMP: |  | Automatic, worm gear driven |
MAXIMUM ENGINE RPM: |  | 10,700 |
IDLE RPM: |  | 2,900 |
IGNITION TIMING: |  | 2.7mm before TDC |
BREAKER POINT SETTING: |  | 0.30 to 0.40mm |
FLYWHEEL/COIL AIR GAP: |  | 0.3 mm (0.012 in.) |
SPARK PLUG TYPE: |  | Champion CJ7Y |
SPARK PLUG GAP: |  | 0.5mm to 0.6mm (0.020 to 0.024 in.) |
CRANKSHAFT MAIN BEARINGS: |  | Ball |
FUEL TANK CAPACITY: |  | 1.1 litres |
FUEL OIL RATIO: |  | 25:1 |
RECOMMENDED FUEL OCTANE: |  | Regular |
MIX OIL SPECIFICATION: |  | Two-cycle chain saw mix oil |
CHAIN PITCH: |  | 3/8 in. or .404 in. |
CHAIN TYPE: |  | Chipper |
BAR MOUNT PATTERN: |  | 18 link |
SHORTEST GUIDE BAR SUPPLIED: |  | 33cm (13 in.) |
LONGEST GUIDE BAR SUPPLIED: |  | 78cm (31 in.) |
COLOUR SCHEME: |  | Red and Silver enamel |
PAINT CODES: |  | |
ILLUSTRATED PARTS LIST: |  |  |
SERVICE MANUAL: |  |  |