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Model: R523

MANUFACTURED BY:
PARTNER AB
MOLNDAL, SWEDEN
SERIES OR ASSEMBLY NUMBER:
SERIAL NUMBER PREFIX:
YEAR INTRODUCED:
1974, June
YEAR DISCONTINUED:
ENGINE DISPLACEMENT:
65ccm (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:
6.2kg (13.7 lbs.) powerhead only
OPERATOR CONFIGURATION:
One Man operation
HANDLEBAR SYSTEM:
Anti-vibration
CHAIN BRAKE:
Mechanical
CLUTCH:
Centrifugal
DRIVE TYPE:
Direct
CONSTRUCTION:
Die cast magnesium
MAGNETO TYPE:
Bosch
CARBURETOR:
Tillotson HS series
MAJOR REPAIR KIT:
MINOR REPAIR KIT:
AIR FILTER SYSTEM:
Nylon mesh element
STARTER TYPE:
Partner automatic rewind
OIL PUMP:
Automatic, non-adjustable
MAXIMUM ENGINE RPM:
8,000
IDLE RPM:
where clutch disengages
IGNITION TIMING:
fixed
BREAKER POINT SETTING:
0.45mm (0.018 in.)
FLYWHEEL/COIL AIR GAP:
SPARK PLUG TYPE:
Bosch WS5E or Champion CJ6
SPARK PLUG GAP:
0.5mm (.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:
9.5mm (.375 in.)
CHAIN TYPE:
Partner Super Chisel
BAR MOUNT PATTERN:
SHORTEST GUIDE BAR SUPPLIED:
33cm (13 in.)
LONGEST GUIDE BAR SUPPLIED:
45.7cm (18 in.)
COLOUR SCHEME:
Yellow and Black enamel
PAINT CODES:
ILLUSTRATED PARTS LIST:
SERVICE MANUAL:

COMMENTS:


Improved version of R22 which is first chainbrake equipped model but 65cc engine, intended for sale in Nordic countries, has added safety features such as chain catcher and throttle trigger lockout.

 

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