MANUFACTURED BY: PARTNER AB MOLNDAL, SWEDEN SERIES OR ASSEMBLY NUMBER: YEAR INTRODUCED: 1971, October YEAR DISCONTINUED: ENGINE DISPLACEMENT: 65cc (3.97 cu. in.) NUMBER OF CYLINDERS: 1 CYLINDER BORE: 48mm (1.89 in.) PISTON STROKE: 36mm (1.42 in.) PISTON RING THICKNESS: CYLINDER TYPE: Chrome plated aluminum INTAKE METHOD: Piston ported MANUFACTURER ADVERTISED H.P.: WEIGHT: OPERATOR CONFIGURATION: One Man operation HANDLEBAR SYSTEM: CHAIN BRAKE: CLUTCH: Centrifugal DRIVE TYPE: Direct CONSTRUCTION: Die cast magnesium MAGNETO TYPE: Bosch CARBURETOR: Tillotson HS-117B series MAJOR REPAIR KIT: RK-23HS MINOR REPAIR KIT: Dg-5HS/T AIR FILTER SYSTEM: Nylon mesh element STARTER TYPE: Partner automatic rewind OIL PUMP: Automatic, non-adjustable MAXIMUM ENGINE RPM: 8,000 IDLE RPM: IGNITION TIMING: fixed BREAKER POINT SETTING: 0.45mm (0.016 in.) FLYWHEEL/COIL AIR GAP: SPARK PLUG TYPE: Bosch WS5E or Champion CJ6 SPARK PLUG GAP: 0.5mm (0.020 in.) CRANKSHAFT MAIN BEARINGS: Ball FUEL TANK CAPACITY: .75 litres (1.32 Imperial pints) FUEL OIL RATIO: 50:1 with Partner Oil otherwise 25:1 RECOMMENDED FUEL OCTANE: Regular MIX OIL SPECIFICATION: Partner Mix Oil CHAIN PITCH: 9.252mm (.375 in.) CHAIN TYPE: Partner Chipper BAR MOUNT PATTERN: SHORTEST GUIDE BAR SUPPLIED: 38cm (15 in.) LONGEST GUIDE BAR SUPPLIED: 45cm (18 in.) COLOUR SCHEME: Yellow and Black enamel