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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 ...
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 ...
In 1914 Henry adapted his automobile engine design for a new 500 cc straight-twin engine racing motorcycle. The Peugeot 500 M racing motorcycle was the world's first motorcycle to use a double overhead camshaft cylinder head; the twin camshafts were driven by a cascade of gears between the cylinders, and used 4 valves per cylinder. The new ...
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 ...
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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.
Their mowers are limited to a stock lawn mower engine with a governor set to no more than 3650 rpm and a 10:1 gear ratio. Adult classes are split by running time trials. Time trials are set up like a qualifying run in NASCAR. A-Class is the mowers that run the fastest times. D-Class is the mowers that run the slowest during time trials.