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Until the 1960s, the company concentrated on the manufacture of power dusters, mist blowers and other pest control machinery. The first Kyoritsu Noki brushcutter was introduced in 1960 and three years later, the company launched its first chainsaw, the Echo CS-80, and the first Kyoritsu Noki tool to bear the "Echo" brand name. In 1970, Kyoritsu ...
A larger capacity of 2,088 cc was achieved by changing the pistons and liners for a bore of 85 mm, retaining the stroke of 92 mm. [7] These are generally known as "85 mm engines", in contrast to the original "80 mm". After 1955, the engines in Ferguson tractors had a bore of 87 mm, giving a capacity of 2,188 cc engines. [8]
The Twin Cylinder Engine – This engine was introduced in 1977 as a means of competing with Briggs & Stratton's rivals, particularly Japanese firms like Honda who were cutting into traditional Briggs & Stratton markets by producing lawn mower engines (and later, complete lawn mowers). These first models were rated 16 hp (11.9 kW) and displaced ...
Both are relatively quiet, typically producing less than 75 decibels, while a gasoline lawn mower can be 95 decibels or more. [21] Corded electric mowers are limited in range by their trailing power cord, which may limit their use with lawns extending outward more than 100–150 feet (30–45 m) from the nearest available power outlet.
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The engines are small in both physical dimensions and power output, relative to larger automobile engines.Power outputs are typically less than 11 kW (15 hp). The smallest of all are used in handheld garden machinery, such as string trimmers and chainsaws, which have a displacement as small as 24 cc (1.5 cu in). [2]
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This engine was the first to locate one balance shaft higher than the other, to counteract the second order rolling couple (i.e. about the crankshaft axis) due to the torque exerted by the inertia caused by increases and decreases in engine speed. [6] [7] In a flat-four engine, the forces are cancelled out by the pistons moving in opposite ...