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Prior to the late 2010s, forced induction was only used on a handful of production motorcycles, all from Japanese Big Four manufacturers in the early 1980s. [1] [2] [3]Honda 1982 CX 500 Turbo / 1983 650 Turbo
A crank sensor (CKP) [1] [2] [3] is an electronic device used in an internal combustion engine, both petrol and diesel, to monitor the position or rotational speed of the crankshaft. This information is used by engine management systems to control the fuel injection or the ignition system timing and other engine parameters.
A straight-twin engine, also known as an inline-twin, vertical-twin, inline-2, or parallel-twin, is a two-cylinder piston engine whose cylinders are arranged in a line along a common crankshaft. Straight-twin engines are primarily used in motorcycles; other uses include automobiles, marine vessels, snowmobiles, jet skis , all-terrain vehicles ...
The YZR500 had two crankshafts like a U engine and the angle between each pair of cylinders was 90°, like a V4. In 1997 Mick Doohan wanted to run a 180° screamer engine. HRC crew chief Jerry Burgess explained "The 180 got back a direct relationship between the throttle and the rear wheel, When the tire spun I could roll off without losing drive.
The first flat-twin motorcycle engine was built in 1905 by the Light Motors Company in the United Kingdom. Originally named the Fée (renamed "Fairy" soon after its introduction), [ 15 ] it was designed as a "bicycle engine system" which transmitted power to a pulley on the rear wheel via a chain. [ 16 ]
Both carbs were fed from the float chamber of the left hand carb. [16] Triumph twins used two chopped monoblocs and a remote float chamber mounted centrally behind the carbs. [ 18 ] [ 19 ] In 1964 a right hand version of the 389 was introduced, designated 689, which was a mirror image of the 389.
The Autolite 2100 is a two venturi (barrel) carburetor manufactured in multiple variants by Autolite from 1957 to 1973. Eight sizes ranging from 190 cfm to 424 cfm were made, all with synchronized venturis, variously with manual, electric, or automatic hot-air chokes.
Programmed Fuel Injection, or PGMFI/PGM-FI, is the name given by Honda to a proprietary digital electronic multi-point injection system for internal combustion engines.It has been available since the early 1980s.