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Model: 639

MANUFACTURED BY:
SOLO KLEINMOTOREN GmbH
STUTTGART, GERMANY
SERIES OR ASSEMBLY NUMBER:
YEAR INTRODUCED:
1993
YEAR DISCONTINUED:
ENGINE DISPLACEMENT:
39cc (2.37 cu. in.)
NUMBER OF CYLINDERS:
1
CYLINDER BORE:
PISTON STROKE:
PISTON RING THICKNESS:
CYLINDER TYPE:
Aluminum with Nikasil coating
INTAKE METHOD:
Piston ported
MANUFACTURER ADVERTISED H.P.:
2.6 (1.9 Kw)
WEIGHT:
4.49 kg (9.9 lbs.), powerhead only
OPERATOR CONFIGURATION:
One Man operation
HANDLEBAR SYSTEM:
Anti-vibration
CHAIN BRAKE:
Inertia activated
CLUTCH:
Centrifugal
DRIVE TYPE:
Direct
CONSTRUCTION:
Injection molded plastic, die cast magnesium
MAGNETO TYPE:
Electronic
CARBURETOR:
Walbro
MAJOR REPAIR KIT:
MINOR REPAIR KIT:
AIR FILTER SYSTEM:
Cellulose fiber cartridge
STARTER TYPE:
Automatic rewind
OIL PUMP:
Automatic, gear driven
MAXIMUM ENGINE RPM:
IDLE RPM:
IGNITION TIMING:
fixed
BREAKER POINT SETTING:
none
FLYWHEEL/COIL AIR GAP:
SPARK PLUG TYPE:
SPARK PLUG GAP:
CRANKSHAFT MAIN BEARINGS:
Ball
FUEL TANK CAPACITY:
500 ml (17 fl. oz.)
FUEL OIL RATIO:
40:1
RECOMMENDED FUEL OCTANE:
Regular grade
MIX OIL SPECIFICATION:
SOLO mix oil
CHAIN PITCH:
.325 in.
CHAIN TYPE:
BAR MOUNT PATTERN:
SHORTEST GUIDE BAR SUPPLIED:
40 cm (16 in.)
LONGEST GUIDE BAR SUPPLIED:
50 cm (20 in.)
COLOUR SCHEME:
Solo Red with Black top cover
PAINT CODES:
ILLUSTRATED PARTS LIST:
SERVICE MANUAL:

COMMENTS:
Current consumer model



 

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