MANUFACTURED BY: JONSEREDS FABRIKERS AB PARTILLE, SWEDEN SERIES OR ASSEMBLY NUMBER: YEAR INTRODUCED: 1958 YEAR DISCONTINUED: 1962 ENGINE DISPLACEMENT: 85cc (5.18 cu. in.) NUMBER OF CYLINDERS: 1 CYLINDER BORE: 52mm (2.04 in.) PISTON STROKE: 40mm (1.57 in.) CYLINDER TYPE: Aluminum with chrome plated bore INTAKE METHOD: Rotary valve MANUFACTURER ADVERTISED H.P.: 3.16kw @ 6650 rpm WEIGHT: 10.9 kg with 48 cm bar & chain 23.14 lbs. with 19 in. bar & chain OPERATOR CONFIGURATION: One Man operation HANDLEBAR SYSTEM: Rigid CHAIN BRAKE: none CLUTCH: Centrifugal DRIVE TYPE: Gear reduction CONSTRUCTION: Die cast magnesium MAGNETO TYPE: Stefa CARBURETOR: Injector MAJOR REPAIR KIT: MINOR REPAIR KIT: AIR FILTER SYSTEM: Metallic screen STARTER TYPE: Automatic rewind OIL PUMP: Manual MAXIMUM ENGINE RPM: 8,800 IDLE RPM: IGNITION TIMING: BREAKER POINT SETTING: FLYWHEEL/COIL AIR GAP: SPARK PLUG TYPE: SPARK PLUG GAP: CRANKSHAFT MAIN BEARINGS: Ball FUEL TANK CAPACITY: 1.2 litres (40.5 oz/) FUEL OIL RATIO: 25:1 RECOMMENDED FUEL OCTANE: Regular MIX OIL SPECIFICATION: Two-cycle mix oil CHAIN PITCH: 12.7mm (.500 in.) or .404 in. CHAIN TYPE: BAR MOUNT PATTERN: SHORTEST GUIDE BAR SUPPLIED: 48 cm (19 in.) LONGEST GUIDE BAR SUPPLIED: COLOUR SCHEME: Red or Blue colour schemes used