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Model: 181

MANUFACTURED BY:
efco
REGGIO EMILIA, ITALY
SERIES OR ASSEMBLY NUMBER:
YEAR INTRODUCED:
YEAR DISCONTINUED:
ENGINE DISPLACEMENT:
80.7 ccm (4.9 cu, in,)
NUMBER OF CYLINDERS:
1
CYLINDER BORE:
52 mm (2.0 in.)
PISTON STROKE:
38 mm (1.5 in.)
PISTON RING THICKNESS:
2 rings
CYLINDER TYPE:
Aluminum with Chrome plated bore
INTAKE METHOD:
Piston ported
MANUFACTURER ADVERTISED H.P.:
4.2 kW (5.7 hp) @ 9,000 rpm
WEIGHT:
OPERATOR CONFIGURATION:
One Man operation
HANDLEBAR SYSTEM:
Anti-Vibration
CHAIN BRAKE:
Automatic inertia activated
CLUTCH:
Automatic, 3 metal shoes
DRIVE TYPE:
Direct
CONSTRUCTION:
Die cast Magnesium
MAGNETO TYPE:
CARBURETOR:
Walbro WJ-72B
MAJOR REPAIR KIT:
MINOR REPAIR KIT:
AIR FILTER SYSTEM:
STARTER TYPE:
Automatic rewind
OIL PUMP:
Automatic, reservoir holds 440 ml (14.9 fl. oz.)
MAXIMUM ENGINE RPM:
13,000 to 13,200 with bar and chain installed
IDLE RPM:
2,800
IGNITION TIMING:
BREAKER POINT SETTING:
not used
FLYWHEEL/COIL AIR GAP:
SPARK PLUG TYPE:
NGK BPMR8Y
SPARK PLUG GAP:
0.5 mm
CRANKSHAFT MAIN BEARINGS:
Ball
FUEL TANK CAPACITY:
880 ml (29.8 fl. oz.)
FUEL OIL RATIO:
50:1
RECOMMENDED FUEL OCTANE:
MIX OIL SPECIFICATION:
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:



 

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