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Model: 550B

MANUFACTURED BY:
LANCASTER PUMP & MFG. CO.
LANCASTER, PENNSYLVANIA, U.S.A.
SERIES OR ASSEMBLY NUMBER:
YEAR INTRODUCED:
1962
YEAR DISCONTINUED:
ENGINE DISPLACEMENT:
4.7 cu. in. (77 ccm)
NUMBER OF CYLINDERS:
1
CYLINDER BORE:
2.00 in. (50.8 mm)
PISTON STROKE:
1.50 in. (38 mm)
PISTON RING THICKNESS:
CYLINDER TYPE:
Aluminum with Cast Iron sleeve
INTAKE METHOD:
Reed valves
MANUFACTURER ADVERTISED H.P.:
5.5
WEIGHT:
21 lbs., powerhead only
OPERATOR CONFIGURATION:
One Man operation
HANDLEBAR SYSTEM:
Rigid
CHAIN BRAKE:
none
CLUTCH:
Centrifugal
DRIVE TYPE:
Direct
CONSTRUCTION:
MAGNETO TYPE:
Phelon
CARBURETOR:
Tillotson Hl
MAJOR REPAIR KIT:
MINOR REPAIR KIT:
DG-1HL
AIR FILTER SYSTEM:
Shredded metal element
STARTER TYPE:
Fairbanks Morse automatic rewind
OIL PUMP:
Manual
MAXIMUM ENGINE RPM:
4,500 under load
IDLE RPM:
IGNITION TIMING:
0.185 in. (4.4 mm) BTDC
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:
RECOMMENDED FUEL OCTANE:
REgular grade
MIX OIL SPECIFICATION:
CHAIN PITCH:
7/16 in.
CHAIN TYPE:
Atkins 763
BAR MOUNT PATTERN:
SHORTEST GUIDE BAR SUPPLIED:
LONGEST GUIDE BAR SUPPLIED:
COLOUR SCHEME:
PAINT CODES:
ILLUSTRATED PARTS LIST:
SERVICE MANUAL:

COMMENTS:
Used Power Products AH-47 engine type 1163E



 

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