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Model: 51

MANUFACTURED BY:
POULAN MANUFACTURING CORP.
SHREVEPORT, LOUSIANA, U.S.A.
SERIES OR ASSEMBLY NUMBER:
YEAR INTRODUCED:
1963
YEAR DISCONTINUED:
1964, obsoleted 1971
ENGINE DISPLACEMENT:
5.01 cu. in. (82cc)
NUMBER OF CYLINDERS:
1
CYLINDER BORE:
2.0625 in. (52.38mm)
PISTON STROKE:
1.50 in. (38mm)
PISTON RING THICKNESS:
CYLINDER TYPE:
Aluminum with cast iron sleeve
INTAKE METHOD:
Reed valve
MANUFACTURER ADVERTISED H.P.:
WEIGHT:
21-1/2 lbs., powerhead only
OPERATOR CONFIGURATION:
One Man operation
HANDLEBAR SYSTEM:
Rigid
CHAIN BRAKE:
none
CLUTCH:
Centrifugal
DRIVE TYPE:
Direct
CONSTRUCTION:
Sand cast aluminum
MAGNETO TYPE:
Wico
CARBURETOR:
Tillotson HL series
MAJOR REPAIR KIT:
MINOR REPAIR KIT:
AIR FILTER SYSTEM:
Skinner ribbon element
STARTER TYPE:
Fairbanks Morse automatic rewind
OIL PUMP:
Manual
MAXIMUM ENGINE RPM:
6,500
IDLE RPM:
IGNITION TIMING:
position stator mid range of mounting holes
BREAKER POINT SETTING:
0.020 in. (0.51 mm)
FLYWHEEL/COIL AIR GAP:
fixed
SPARK PLUG TYPE:
Champion J6J, Autolite A3X
SPARK PLUG GAP:
0.025 in. (0.63 mm)
CRANKSHAFT MAIN BEARINGS:
Ball and caged needle roller
FUEL TANK CAPACITY:
FUEL OIL RATIO:
16:1
RECOMMENDED FUEL OCTANE:
Regular
MIX OIL SPECIFICATION:
Poulan mix oil
CHAIN PITCH:
.404 in., 7/16 in. or 3/8 in. optional
CHAIN TYPE:
Poulan
BAR MOUNT PATTERN:
SHORTEST GUIDE BAR SUPPLIED:
16 in. (40 cm)
LONGEST GUIDE BAR SUPPLIED:
28 in. (71 cm)
COLOUR SCHEME:
PAINT CODES:
ILLUSTRATED PARTS LIST:
SERVICE MANUAL:

COMMENTS:


Colour photographs courtesy Andy Williams

 

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