This is the first saw made by JO-BU A/S MEKANISKE VERKSTED in Norway 1948.
Saw can be started the normal way but for utilisation the cylinder needed to be face down or saw upside down. The carburetor and gas tank assembly is mounted on a swivel pivot and would rotate to position the saw for the proper angle cut.
This is a rare saw with a limited production of around 7,000 units. How many are survivals up to this day ???? We don't see them to often for sure.
MANUFACTURED BY: JO-BU A/S MEKANISKE VERKSTED DROBAK, OSLO, NORWAY.
INTRODUCED: 1948
DISPLACEMENT: 125 ccm (7.62 cu. in.)
RPM: 4000
CHAIN: "Straddle" type scratcher or "crosscut" chain.
CLUTCH: Manual, cork disk in oil bath
DRIVE TYPE: BALL type chain reduction
CONSTRUCTION: Sand cast aluminum
STARTER TYPE: Rope
engine:Aspin.
carburator: Amal,Birmingham,England...float type.
chain/bar lubrication: gravity fed
Special note: This saw has the chain installed reverse since it needed to be tilted upside down for operation. For carry easy there are provision for shoulder belts attachment for carrying the saw like a back pack.