MANUFACTURED BY:
JONSEREDS FABRIKERS AB
PARTILLE, SWEDEN
SERIES OR ASSEMBLY NUMBER:
YEAR INTRODUCED:
1970
YEAR DISCONTINUED:
1980
ENGINE DISPLACEMENT:
80cc (4.9 cu. in.)
NUMBER OF CYLINDERS:
1
CYLINDER BORE:
52mm (2.047 in.)
PISTON STROKE:
38mm (1.496 in.)
CYLINDER TYPE:
Aluminum with Nikasil coated bore
INTAKE METHOD:
Piston ported
MANUFACTURER ADVERTISED H.P.:
3.53kW @ 8000 rpm
WEIGHT:
7.48kg
OPERATOR CONFIGURATION:
One Man operation
HANDLEBAR SYSTEM:
Anti-vibration
CHAIN BRAKE:
none
CLUTCH:
Centrifugal
DRIVE TYPE:
Direct
CONSTRUCTION:
Die cast magnesium
MAGNETO TYPE:
Pagani
CARBURETOR:
Tillotson HS-101C series
MAJOR REPAIR KIT:
RK-23HS
MINOR REPAIR KIT:
DG-5HS/T
AIR FILTER SYSTEM:
Nylon mesh cartridge
STARTER TYPE:
Jonsereds automatic rewind
OIL PUMP:
Automatic, worm gear driven
MAXIMUM ENGINE RPM:
10,700
IDLE RPM:
IGNITION TIMING:
2.9mm before TDC
BREAKER POINT SETTING:
0.3 to 0.4mm
FLYWHEEL/COIL AIR GAP:
0.3 mm (0.012 in.)
SPARK PLUG TYPE:
Champion CJ7Y
SPARK PLUG GAP:
0.5 to 0.6mm (0.020 to 0.024 in.)
CRANKSHAFT MAIN BEARINGS:
Ball
FUEL TANK CAPACITY:
1.1 litres
FUEL OIL RATIO:
25:1
RECOMMENDED FUEL OCTANE:
Regular
MIX OIL SPECIFICATION:
Two-cycle chain saw mix oil
CHAIN PITCH:
3/8 in.
CHAIN TYPE:
Chisel
BAR MOUNT PATTERN:
18 link
SHORTEST GUIDE BAR SUPPLIED:
38cm (15 in.)
LONGEST GUIDE BAR SUPPLIED:
58cm (23 in.)
COLOUR SCHEME:
Red and Black enamel
