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The KT100 is a simple and rugged air-cooled engine that uses piston-ported intake induction with a Walbro WB-3A carburetor. The KT100 is a popular high-performance two-stroke kart racing engine. It comes in various forms used in many countries. The KT100J is slightly smaller with fewer options in comparison to its bigger brother, the KT100SE.
Three 147 cc engines were listed as new in the 1931 Stuart Turner catalogue all rated at 1 ⁄ 2 HP at 1000 rpm. With 53 mm bore and stroke the W2 was a 2-stroke, and water cooled. The engine featured a cast iron piston and steel H section connecting rod. The steel crankshaft could be supported in either plain or ball bearings.
The early motorcycles made their mark in International Six Days Trials competitions, enduro races like the Michigan Jack Pine Endurance Run, scrambles and motocross.The most popular size was the 125cc (Six Day), but they were also made in 100 cc (Berkshire) and later, in 175 cc (Jackpiner, in 1972), 250 cc (Hare Scrambler, in 1973), and 400 cc (Mint, in 1974).
In 1979 the XID appeared, with 1,548 cc this version shared many parts with the XR petrol engine. Both the original XK and the larger XL underwent major changes around the end of 1975, receiving shorter strokes and wider bores which ended up resulting in nearly the same displacement and with very similar outputs, albeit with lower torque.
The Imme R100 was a lightweight motorcycle made by Riedel AG from 1948 to 1951. It is noted for its simple and innovative design with many advanced features. With low cost and technical innovation, the R100 sold well, but reliability problems and low profit margins resulted in warranty costs driving Riedel AG into bankruptcy.
The Vegas debuted with the 92 cu in (1,510 cc) engine and 5-speed transmission, but was upgraded to a 100 cu in (1,600 cc) engine and 6-speed transmission for the 2006 model year. The Vegas Low has a 1 in (25 mm) lower seat, repositioned foot pegs, and handlebars 2 in (51 mm) further back than the regular Vegas model.
The first bike manufactured by Yamaha was actually a copy of the German DKW RT 125; it had an air-cooled, two-stroke, single cylinder 125 cc engine [1] YC-1 (1956) was the second bike manufactured by Yamaha; it was a 175 cc single cylinder two-stroke. [1] YD-1 (1957) Yamaha began production of its first 250 cc, two-stroke twin, the YD1. [1]
Preceding the RM lineup was the TM series, which included the TM75, TM100, TM125, TM250, and TM400. Motorcycles within the RM series continue to be manufactured today, the famous RM125 was discontinued in America in late 2008 . The 100 cc RM100 was discontinued in 2005. The RM250 was discontinued by the 2008 model year.