Home | Chain Saws | Chain Saw Chain | Bar Mount Patterns | Carburetors | Manufacturers | Trademarks | Collectors | Bulletins | Events | Stolen Saws | Chain Saw Age Reprints | Newsletter | Marketplace | Parts Sources | Cartoons | Links | Your Host



Model: 670

MANUFACTURED BY:
JONSEREDS FABRIKERS AB
PARTILLE, SWEDEN
SERIES OR ASSEMBLY NUMBER:
YEAR INTRODUCED:
1986
YEAR DISCONTINUED:
1997
ENGINE DISPLACEMENT:
66.8cc (4.1 cu. in.)
NUMBER OF CYLINDERS:
1
CYLINDER BORE:
50mm (1.97 in.)
PISTON STROKE:
34mm (1.34 in.)
PISTON RING THICKNESS:
CYLINDER TYPE:
Aluminum with chrome plated bore
INTAKE METHOD:
Piston ported
MANUFACTURER ADVERTISED H.P.:
3.3 kW @ 9,600 rpm
WEIGHT:
6.13 kg (13.5 lbs.)
OPERATOR CONFIGURATION:
One Man operation
HANDLEBAR SYSTEM:
Anti-vibration
CHAIN BRAKE:
Inertia activated
CLUTCH:
Centrifugal
DRIVE TYPE:
Directg
CONSTRUCTION:
Die cast magnesium
MAGNETO TYPE:
Electronic
CARBURETOR:
Tillotson HS-230A, B, C
MAJOR REPAIR KIT:
RK-23HS
MINOR REPAIR KIT:
DG-5HS/T
AIR FILTER SYSTEM:
Nylon mesh cartridge
STARTER TYPE:
Automatic rewind
OIL PUMP:
Automatic, gear driven
MAXIMUM ENGINE RPM:
9,600
IDLE RPM:
IGNITION TIMING:
fixed
BREAKER POINT SETTING:
none
FLYWHEEL/COIL AIR GAP:
0.30 to 0.40 mm (0.012 to 0.016 in.)
SPARK PLUG TYPE:
Bosch WS7F, Champion RCJ7Y
SPARK PLUG GAP:
0.51 mm (0.020 in.)
CRANKSHAFT MAIN BEARINGS:
Ball
FUEL TANK CAPACITY:
730 ml (24.7 oz.)
FUEL OIL RATIO:
40:1
RECOMMENDED FUEL OCTANE:
Regular
MIX OIL SPECIFICATION:
Electrolux approved two-cycle mix oil
CHAIN PITCH:
3/8 in.
CHAIN TYPE:
BAR MOUNT PATTERN:
17 link
SHORTEST GUIDE BAR SUPPLIED:
33 cm (13 in.)
LONGEST GUIDE BAR SUPPLIED:
71 cm (28 in.)
COLOUR SCHEME:
Red and Black
PAINT CODES:
ILLUSTRATED PARTS LIST:
SERVICE MANUAL:

COMMENTS:


Colour photographs courtesy Eric Olsen

 

Reproduction of this World Wide Web Site in whole or in part is prohibited without permission.
Copyright © 2000-2021 MIKE ACRES - All rights are reserved.