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Model: 20

MANUFACTURED BY:
WHITEHEAD CHAIN SAW COMPANY
ATLANTA, GEORGIA, U.S.A.
SERIES OR ASSEMBLY NUMBER:
YEAR INTRODUCED:
1957
YEAR DISCONTINUED:
ENGINE DISPLACEMENT:
5.8 cu. in. (95cc)
NUMBER OF CYLINDERS:
1
CYLINDER BORE:
2.0625 in. (52mm)
PISTON STROKE:
1.750 in. (44.4mm)
PISTON RING THICKNESS:
CYLINDER TYPE:
Aluminum with cast iron liner
INTAKE METHOD:
Reed valves
MANUFACTURER ADVERTISED H.P.:
4
WEIGHT:
27 lbs. (12.2kg)
OPERATOR CONFIGURATION:
One Man operation
HANDLEBAR SYSTEM:
Rigid
CHAIN BRAKE:
none
CLUTCH:
Centrifugal
DRIVE TYPE:
Direct
CONSTRUCTION:
Sand cast aluminum
MAGNETO TYPE:
Wico flywheel type
CARBURETOR:
Tillotson
MAJOR REPAIR KIT:
MINOR REPAIR KIT:
AIR FILTER SYSTEM:
STARTER TYPE:
Fairbanks Morse automatic rewind
OIL PUMP:
Manual
MAXIMUM ENGINE RPM:
IDLE RPM:
IGNITION TIMING:
Position stator plate mid range of mounting screws. 0.15625 in before TDC
BREAKER POINT SETTING:
0.020 in. (0.51 mm)
FLYWHEEL/COIL AIR GAP:
Position is fixed
SPARK PLUG TYPE:
Champion H8J
SPARK PLUG GAP:
0.030 in. (0.76 mm)
CRANKSHAFT MAIN BEARINGS:
Ball and caged needle roller
FUEL TANK CAPACITY:
FUEL OIL RATIO:
1/2 pint to 1 gallon = 16:1
RECOMMENDED FUEL OCTANE:
Regular grade 72 to 83
MIX OIL SPECIFICATION:
Two-cycle chain saw mix oil
CHAIN PITCH:
CHAIN TYPE:
BAR MOUNT PATTERN:
SHORTEST GUIDE BAR SUPPLIED:
LONGEST GUIDE BAR SUPPLIED:
COLOUR SCHEME:
PAINT CODES:
ILLUSTRATED PARTS LIST:
SERVICE MANUAL:

COMMENTS:
Used West Bend engine 5800? series



 

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