Sold from 1967 to 1977, the Model 041 chain saw was made by the Stihl company of Stuttgart, Germany. Like many other chain saws of its day, it featured a single-cylinder gasoline powered engine, but lacked safety and comfort features like a chain brake or a vibration-absorbing system of handlebars.
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Although the Stihl 041's single-cylinder, 61-cubic-centimetre-displacement engine was advertised to produce 3.7 horsepower, when measured by the German DIN standard, it actually produced 5.5 horsepower when running at its maximum operating speed of 7,000 revolutions per minute. The engine had a bore and stroke of 44 and 40mm, respectively, and directly drove the chain through a centrifugal clutch. Over its life, Stihl built the 041 with a number of different Tillotson HS series carburettors.
The Stihl 041 has a grey case made out of magnesium with a red top. Its powerhead weighs 6.2 kilograms.
Bar and Chain
Guidebars between 35 and 63 centimetres will work on the Stihl 041 chain saw. It supports Oregon chains with a pitch of 0.375 inches and can optionally support 0.404-inch pitch chains.
A Fairbanks Morse automatic rewind starter gets the 041's motor running. Once running, a Bosch magneto provides the power for its ignition system which generates a pulse 2.5mm before the piston reaches "total dead centre." A Bosch WKA175T6 spark plug with a 0.51mm gap provides the actual spark to ignite the fuel and oil mixture.
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