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Model: R420T

MANUFACTURED BY:
PARTNER AB
MOLNDAL, SWEDEN
SERIES OR ASSEMBLY NUMBER:
SERIAL NUMBER PREFIX:
YEAR INTRODUCED:
1974, December
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.:
not advertised
WEIGHT:
6.2kg (13.7 lbs.) powerhead ony
OPERATOR CONFIGURATION:
One Man operation
HANDLEBAR SYSTEM:
Anti-vibration
CHAIN BRAKE:
Mechanical
CLUTCH:
Centrifugal
DRIVE TYPE:
Direct
CONSTRUCTION:
Die cast magnesium
MAGNETO TYPE:
Thyristor Transistorized electronic
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:
8000
IDLE RPM:
where clutch disengages
IGNITION TIMING:
fixed
BREAKER POINT SETTING:
none
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:
9.5mm (.375 in.)
CHAIN TYPE:
Partner Super Chisel
BAR MOUNT PATTERN:
SHORTEST GUIDE BAR SUPPLIED:
38cm (15 in.)
LONGEST GUIDE BAR SUPPLIED:
50.8cm (20 in.)
COLOUR SCHEME:
Yellow and Black
PAINT CODES:
ILLUSTRATED PARTS LIST:
SERVICE MANUAL:

COMMENTS:



 

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