LATER MODEL:
MANUFACTURED BY:
WRIGHT POWER SAW & TOOL Corp.
STRATFORD, CONN. U.S.A.
SERIES OR ASSEMBLY NUMBER:
YEAR INTRODUCED:
1957
YEAR DISCONTINUED:
1958
ENGINE DISPLACEMENT:
4.51 cu. in. (73.9 cc)
NUMBER OF CYLINDERS:
1
CYLINDER BORE:
2.0 in. (50.8 mm)
PISTON STROKE:
1.4375 in. (36.5 mm)
CYLINDER TYPE:
Aluminum with cast iron sleeve
INTAKE METHOD:
Reed valves
MANUFACTURER ADVERTISED H.P.:
not advertised
WEIGHT :
19 lbs. (8.6 kg) complete
OPERATOR CONFIGURATION:
One Man operation
HANDLEBAR SYSTEM:
Rigid
CHAIN BRAKE:
none
CLUTCH:
none
DRIVE TYPE:
Direct
CONSTRUCTION:
Die cast magnesium
MAGNETO TYPE:
Phelon flywheel magneto
CARBURETOR:
Carter float type with wick elements on early version
Tillotson HL-9A series on late versions
MAJOR REPAIR KIT:
MINOR REPAIR KIT:
AIR FILTER SYSTEM:
Skinner ribbon element
STARTER TYPE:
Fairbanks Morse automatic rewind
OIL PUMP:
none used
OPERATING RPM:
4800 to 5200 with governor
IGNITION TIMING:
0.125 in. (3.17 mm) before TDC
BREAKER POINT SETTING:
0.020 in. (0.51 mm)
FLYWHEEL/COIL AIR GAP:
position is fixed
SPARK PLUG TYPE:
Champion J11J
SPARK PLUG GAP:
0.025 in. (0.63 mm)
CRANKSHAFT MAIN BEARINGS:
Ball
FUEL TANK CAPACITY:
FUEL OIL RATIO:
1/2 pint to 1 gallon = 16:1
RECOMMENDED FUEL OCTANE:
Regular unleaded
MIX OIL SPECIFICATION:
SAE 30 non detergent
CHAIN PITCH:
not used
CHAIN TYPE:
not used
BAR MOUNT PATTERN:
SHORTEST GUIDE BAR SUPPLIED:
LONGEST GUIDE BAR SUPPLIED:
18 in. (45 cm)
EARLY MODEL