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Model: 670 SUPER

MANUFACTURED BY:
JONSEREDS FABRIKERS AB
PARTILLE, SWEDEN
SERIES OR ASSEMBLY NUMBER:
YEAR INTRODUCED:
YEAR DISCONTINUED:
ENGINE DISPLACEMENT:
66.8 cc (4.1 cu. in.)
NUMBER OF CYLINDERS:
1
CYLINDER BORE:
50 mm (1.97 in.)
PISTON STROKE:
34 mm (1.34 in.)
PISTON RING THICKNESS:
CYLINDER TYPE:
Aluminum with chrome plated bore
INTAKE METHOD:
Piston ported
MANUFACTURER ADVERTISED H.P.:
4.9 (3.7 kW)
WEIGHT:
13.9 lbs., powerhead only
OPERATOR CONFIGURATION:
One Man operation
HANDLEBAR SYSTEM:
Anti-vibration
CHAIN BRAKE:
Inertia activated
CLUTCH:
Centrifugal
DRIVE TYPE:
Direct
CONSTRUCTION:
Die cast magnesium, injection molded plastic
MAGNETO TYPE:
Electronic
CARBURETOR:
Tillotson HS-230C, HS237A
MAJOR REPAIR KIT:
RK-23HS
MINOR REPAIR KIT:
DG-5HS/T
AIR FILTER SYSTEM:
Nylon mesh cartridge
STARTER TYPE:
Automatic rewind
OIL PUMP:
Automatic, worm gear driven
MAXIMUM ENGINE RPM:
8,700
IDLE RPM:
IGNITION TIMING:
fixed
BREAKER POINT SETTING:
none
FLYWHEEL/COIL AIR GAP:
0.3 to 0.4 mm (0.012 to 0.016 in.)
SPARK PLUG TYPE:
Bosch WS7F
SPARK PLUG GAP:
0.5 mm (0.020 in.)
CRANKSHAFT MAIN BEARINGS:
Ball
FUEL TANK CAPACITY:
24.7 fl. oz.
FUEL OIL RATIO:
50:1
RECOMMENDED FUEL OCTANE:
Regular grade
MIX OIL SPECIFICATION:
Electrolux approved mix oil, Jonsered mix oil
CHAIN PITCH:
3/8 in.
CHAIN TYPE:
Oregon 72 or 73
BAR MOUNT PATTERN:
17 link
SHORTEST GUIDE BAR SUPPLIED:
16 in. (40 cm)
LONGEST GUIDE BAR SUPPLIED:
28 in. (71 cm)
COLOUR SCHEME:
Jonsered Red with Black top cover
PAINT CODES:
ILLUSTRATED PARTS LIST:
SERVICE MANUAL:

COMMENTS:


Colour photographs courtesy Eric Olsen

 

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