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Model: T4

MANUFACTURED BY:
HOFFCO INC.
RICHMOND, INDIANA, U.S.A.
SERIES OR ASSEMBLY NUMBER:
YEAR INTRODUCED:
1964
YEAR DISCONTINUED:
ENGINE DISPLACEMENT:
4.7 cu. in. (77 ccm)
NUMBER OF CYLINDERS:
1
CYLINDER BORE:
2.0 in. (50.8 mm)
PISTON STROKE:
1.5 in. (38 mm)
PISTON RING THICKNESS:
CYLINDER TYPE:
Aluminum with cast iron sleeve
INTAKE METHOD:
Reed valves
MANUFACTURER ADVERTISED H.P.:
4
WEIGHT:
18 lbs. powerhead only
OPERATOR CONFIGURATION:
One Man operation
HANDLEBAR SYSTEM:
Rigid
CHAIN BRAKE:
none
CLUTCH:
Centrifugal
DRIVE TYPE:
Direct
CONSTRUCTION:
Sand cast magnesium
MAGNETO TYPE:
Phelon
CARBURETOR:
Tillotson HL series
MAJOR REPAIR KIT:
nla
MINOR REPAIR KIT:
DG-1HL
AIR FILTER SYSTEM:
Skinner ribbon element
STARTER TYPE:
Fairbanks Morse automatic rewind
OIL PUMP:
Manual
MAXIMUM ENGINE RPM:
4,500
IDLE RPM:
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:
0.020 in. (0.51 mm)
CRANKSHAFT MAIN BEARINGS:
Ball
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:
SAE 30 non-detergent
CHAIN PITCH:
CHAIN TYPE:
BAR MOUNT PATTERN:
SHORTEST GUIDE BAR SUPPLIED:
14 in. (35 cm)
LONGEST GUIDE BAR SUPPLIED:
COLOUR SCHEME:
PAINT CODES:
ILLUSTRATED PARTS LIST:
SERVICE MANUAL:

COMMENTS:
used Power Products AH-47 engine type 1422D

 

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