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PARTNER R22.

FIRST MODEL WITH CHAIN BRAKE. MANUFACTURED BY: PARTNER AB MOLNDAL, SWEDEN SERIES OR ASSEMBLY NUMBER: YEAR INTRODUCED: 1973, June YEAR DISCONTINUED: ENGINE DISPLACEMENT: 55cc (3.36 cu. in.) NUMBER OF CYLINDERS: 1 CYLINDER BORE: 44mm (1.732 in.) PISTON STROKE: 36mm (1.42 in.) PISTON RING THICKNESS: CYLINDER TYPE: Chrome plated aluminum INTAKE METHOD: Piston ported MANUFACTURER ADVERTISED H.P.: 2.5kW (3.4 hp) WEIGHT: 6.2 kg (13.7 lbs.) powerhead only OPERATOR CONFIGURATION: One Man operation HANDLEBAR SYSTEM: CHAIN BRAKE: CLUTCH: Centrifugal DRIVE TYPE: Direct CONSTRUCTION: Die cast magnesium MAGNETO TYPE: Bosch CARBURETOR: Tillotson HS-137A 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: 8000 IDLE RPM: IGNITION TIMING: fixed, 26 degrees before TDC 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: 33cm (13 in.) LONGEST GUIDE BAR SUPPLIED: 38cm (15 in.) COLOUR SCHEME: Yellow and Black enamel