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FB was the original name given to a series of very small, all-alloy two-stroke engines built by Suzuki Motor Corporation from October 1961 until November 1987. They were used in a number of kei class automobiles and light trucks. The original air-cooled 359 cc FB was developed into a number of different models, with a number of different names, ending with the water-cooled, three-cylinder LJ50. The engines used for various versions of this engine often refer to the chassis code in the cars in which they were introduced, until Suzuki changed their engine naming system sometime in the first half of the 1970s. ==FB== The engine was first seen in air-cooled form, equipped with a single carburettor, in the 1961 Suzulight Carry FB. This engine has an alloy block and alloy head, betraying Suzuki's roots as a motorcycle manufacturer. It also received three main bearings. Displacement is , from a bore and stroke of 61.0 and 61.5 mm.〔Ozeki, p. 28〕 It originally developed for this little commercial vehicle. In June 1965, along with a modernized Carry, the LC10 engine received Suzuki's new self-lubricating "CCI" system (Cylinder Crank Injection). For the cabover L30 Carry of 1966, a horizontally mounted version of the engine was developed. For this the starter and generator are combined, mounted directly on the front of the crankshaft. In 1969 a reed valve equipped version with increased power was presented, first seen in the L40 Carry. Power increased to at 6000 rpm,〔Ozeki, p. 97〕 with a Solex-style horizontal draught Mikuni 30 PHD carburettor. This engine also equipped the brand new LJ10 Jimny off-roader. In January 1971, a 27 PS (still at 6000 rpm) version of the well known FB engine appeared in the Jimny, now featuring Suzuki's improved "CCIS" (Cylinder Crank Injection and Selmix) lubrication system. Fitted with the same carburettor as before, torque is at 5000 rpm. This was also fitted to the Carry, beginning in April 1971. Such a version of this engine weighs , excluding the transmission.〔''Carry L40/L41/L40V'' (manual), (p. 8 )〕 The air-cooled original FB engine was discontinued in August 1972 (when the L40 van was replaced), as water-cooled engines were becoming more popular in the kei segment.〔Ozeki, p. 98〕 ;Applications: * 1961.10–1965.06 Suzulight Carry FB/FBD * 1965.06–1969.07 Suzulight/Suzuki Carry L20/L21 * 1966.02–1969.07 Suzuki Carry L30/L31 * 1969.07–1972.08 Suzuki Carry L40/L41 * 1971.01–1972.03 Suzuki Jimny LJ10 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Suzuki FB series engine」の詳細全文を読む スポンサード リンク
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