I don't care how you look at it. Jonsered made the first one.
Jonsered "PRODUCED" Meaning sold there prototype of a one man chainsaw.
That is a model XA FIRST saw made in 1954 and was discontinued in 1960
The Jonsered XB came out in 1957
The Jonsered Xc came out in 1955
The Jonsered XD came out in 1958
NOW thats four different ONE MAN Models before Stihl claimed to make the first one
Ya Ya, Stihl tries to improve it. and came out with one the same time Husky did.
A prototype is a wet dream Manual, its something on the drawing board, not for sale. Now tell me, Stihl had a German boxer as pet, what kinda pet did Jonsered have,hehe
Does this look like something that was not sold ?
Model: XA
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MANUFACTURED BY: JONSEREDS FABRIKERS AB
PARTILLE, SWEDEN
SERIES OR ASSEMBLY NUMBER:
YEAR INTRODUCED: 1954
YEAR DISCONTINUED: 1960
ENGINE DISPLACEMENT: 50cc (3.05 cu. in.)
NUMBER OF CYLINDERS: 1
CYLINDER BORE: 39.7mm (1.56 in.)
PISTON STROKE: 40mm (1.57 in.)
CYLINDER TYPE: Chrome plated aluminum
INTAKE METHOD: Rotary valve
MANUFACTURER ADVERTISED H.P.: 1.3kw @ 4500 rpm
WEIGHT : 10kg (22lbs.)
OPERATOR CONFIGURATION: One Man operation
HANDLEBAR SYSTEM: Rigid
CHAIN BRAKE: none
CLUTCH: Centrifugal
DRIVE TYPE: Gear reduction
CONSTRUCTION: Die cast magnesium
MAGNETO TYPE: none
CARBURETOR: Injector
MAJOR REPAIR KIT:
MINOR REPAIR KIT:
AIR FILTER SYSTEM: Metallic screen
STARTER TYPE: Automatic rewind
OIL PUMP: Manual
OPERATING RPM: 6000
IGNITION TIMING: Diesel
BREAKER POINT SETTING: none
FLYWHEEL/COIL AIR GAP:
SPARK PLUG TYPE: none
SPARK PLUG GAP:
CRANKSHAFT MAIN BEARINGS: Ball
FUEL TANK CAPACITY: 1.3 litres
FUEL OIL RATIO: 10:1
RECOMMENDED FUEL OCTANE: Diesel, Kerosene or gasoline
MIX OIL SPECIFICATION: SAE 50 or SAE 60
CHAIN PITCH: 12.7mm (.500in) 1/2"
CHAIN TYPE: Chipper
BAR MOUNT PATTERN:
SHORTEST GUIDE BAR SUPPLIED: 48 cm (19 in.)
LONGEST GUIDE BAR SUPPLIED:
COLOUR SCHEME: Green
PAINT CODES:
ILLUSTRATED PARTS LIST:
SERVICE MANUAL:
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COMMENTS: Runs on Diesel fuel, Kerosene or gasoline mixed with oil. To start a glow plug must be heated with a built in propane heating system.