MANUFACTURED BY: |  | JONSEREDS FABRIKERS AB |
 | | PARTILLE, SWEDEN |
SERIES OR ASSEMBLY NUMBER: | | |
SERIAL NUMBER PREFIX: | | |
YEAR INTRODUCED: | | 1972 |
YEAR DISCONTINUED: | | |
ENGINE DISPLACEMENT: | | 34.4 ccm (2.1 cu. in.) |
NUMBER OF CYLINDERS: | | 1 |
CYLINDER BORE: | | 36.5 mm (1.4375 in.) |
PISTON STROKE: | | 32.5 mm (1.281 in.) |
PISTON RING THICKNESS: | | |
CYLINDER TYPE: | | Aluminum with Chrome plated bore |
INTAKE METHOD: | | Piston ported |
MANUFACTURER ADVERTISED H.P.: | | not advertised |
WEIGHT: | | 2.77 kg (6 lbs. 11 oz.) powerhead only |
OPERATOR CONFIGURATION: | | One Man operation |
HANDLEBAR SYSTEM: | | Rigid |
CHAIN BRAKE: | | none |
CLUTCH: | | Centrifugal, 2 shoe metal |
DRIVE TYPE: | | Direct |
CONSTRUCTION: | | Die cast Magnesium |
MAGNETO TYPE: | | Phelon flywheeel magneto |
CARBURETOR: | | Tillotson HU-18C or
Walbro WA |
MAJOR REPAIR KIT: | | Tillotson RK-14HU
Walbro K10-WAT |
MINOR REPAIR KIT: | | Tillotson DG-2HU
Walbro D10-WAT |
AIR FILTER SYSTEM: | | Cellulose fiber |
STARTER TYPE: | | 2 pawl Automatic rewind |
OIL PUMP: | | Automatic with manual override |
MAXIMUM ENGINE RPM: | | No Load 12,000, under load 6,500 |
IDLE RPM: | | 3,000 |
IGNITION TIMING: | | 25 degrees Before TDC |
BREAKER POINT SETTING: | | 0.35 mm (0.015 in.) |
FLYWHEEL/COIL AIR GAP: | | 0.41 mm (0.016 in,) |
SPARK PLUG TYPE: | | Champion CJ-6 |
SPARK PLUG GAP: | | 0.63 mm (0.025 in.) |
CRANKSHAFT MAIN BEARINGS: | | Caged needle roller (Torrington) |
FUEL TANK CAPACITY: | | 275 ml |
FUEL OIL RATIO: | | 16:1 |
RECOMMENDED FUEL OCTANE: | | Regular Automotive |
MIX OIL SPECIFICATION: | | Chain Saw Two cycle mix |
CHAIN PITCH: | | 1/4 in. |
CHAIN TYPE: | | Oregon 25 |
BAR MOUNT PATTERN: | | |
SHORTEST GUIDE BAR SUPPLIED: | | 30 cm (12 in.) |
LONGEST GUIDE BAR SUPPLIED: | | 40 cm (16 in.) |
COLOUR SCHEME: | | Red with Black Plastic air filter cover |
PAINT CODES: | | |
ILLUSTRATED PARTS LIST: | | |
SERVICE MANUAL: | | |