Specs, courtesy of Mike Acres (
www.acresinternet.com)
MANUFACTURED BY: CRAFTSMAN (SEARS ROEBUCK & CO.)
CHICAGO, IL U.S.A.
SERIES OR ASSEMBLY NUMBER: 917.60043
YEAR INTRODUCED:
YEAR DISCONTINUED:
ENGINE DISPLACEMENT: 4.7 cu. in. (77cc)
NUMBER OF CYLINDERS: 1
CYLINDER BORE: 2.0 in. (50.8 mm)
PISTON STROKE: 1.5 in. (38 mm)
CYLINDER TYPE: Aluminum with cast iron sleeve
INTAKE METHOD: Reed valves
MANUFACTURER ADVERTISED H.P.: 4.0
WEIGHT : 21.2 lbs. powerhead only
OPERATOR CONFIGURATION: One Man operation
HANDLEBAR SYSTEM: Rigid
CHAIN BRAKE: none
CLUTCH: Centrifugal
DRIVE TYPE: Direct
CONSTRUCTION: Die cast magnesium
MAGNETO TYPE: Phelon
CARBURETOR: Power Products diaphragm type
MAJOR REPAIR KIT:
MINOR REPAIR KIT:
AIR FILTER SYSTEM: Skinner ribbon element
STARTER TYPE: Power Producst automatic rewind
OIL PUMP: Manual
OPERATING RPM: 4,500
IGNITION TIMING: 0.175 in. (4.44 mm) before TDC
BREAKER POINT SETTING: 0.020 in. (0.51 mm)
FLYWHEEL/COIL AIR GAP: fixed
SPARK PLUG TYPE: Champion J8J, Autolite A7X, AC M45
SPARK PLUG GAP: 0.030 in. (0.76 mm)
CRANKSHAFT MAIN BEARINGS: Ball
FUEL TANK CAPACITY:
FUEL OIL RATIO: 1/2 pint to 1 gallon (16:1)
RECOMMENDED FUEL OCTANE: Regular
MIX OIL SPECIFICATION: Two-cycle mix oil
CHAIN PITCH: 7/16 in.
CHAIN TYPE: Oregon
BAR MOUNT PATTERN:
SHORTEST GUIDE BAR SUPPLIED: 16 in. (40 cm)
LONGEST GUIDE BAR SUPPLIED: 24 in. (61 cm)
COLOUR SCHEME: Metallic Grey enamel
PAINT CODES: