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  2. Yamaha YZ450F - Wikipedia

    en.wikipedia.org/wiki/Yamaha_YZ450F

    The bike had an 11,600 rpm redline [8] [better source needed] power and torque close to its 250 cc two-stroke rivals. [1] It benefited from engine compression braking, which allowed the engine to slow the bike down during deceleration, giving the brakes a rest. [1] The 1998 YZ400F was the first bike to come stock with a Keihin FCR carburetor.

  3. Four-stroke engine - Wikipedia

    en.wikipedia.org/wiki/Four-stroke_engine

    Four-stroke cycle used in gasoline/petrol engines: intake (1), compression (2), power (3), and exhaust (4). The right blue side is the intake port and the left brown side is the exhaust port. The cylinder wall is a thin sleeve surrounding the piston head which creates a space for the combustion of fuel and the genesis of mechanical energy.

  4. Honda CRF series - Wikipedia

    en.wikipedia.org/wiki/Honda_CRF_series

    The full sized motocross bikes are equipped with liquid-cooled, single cylinder four-stroke engines that are available from 149 cc (9.1 cu in) to 449 cc (27.4 cu in). They now have dual-sport motorcycles. The more trail friendly CRF's have simple air-cooled engines, and are

  5. Honda XR series - Wikipedia

    en.wikipedia.org/wiki/Honda_XR_series

    Introduced in 1979, the twin-shock Honda XR 500 was the first "XR" model. The engine was a four-stroke, four-valve OHC, 497 cc (30.3 cu in) "Pentroof" engine. The bike had a conventional 18" rear wheel but an unusual 23" front wheel which was supposed to be better for riding over potholes and ruts.

  6. List of motorcycles by type of engine - Wikipedia

    en.wikipedia.org/wiki/List_of_motorcycles_by...

    List of motorcycles by type of engine is a list of motorcycles by the type of motorcycle engine used by the vehicle, such as by the number of cylinders or configuration.. A transverse engine is an engine mounted in a vehicle so that the engine's crankshaft axis is perpendicular to the direction of travel.

  7. Kawasaki KX250F - Wikipedia

    en.wikipedia.org/wiki/Kawasaki_KX250F

    The Kawasaki KX 250F is a liquid-cooled DOHC 249 cc (15.2 cu in) four-valve four-stroke single motocross motorcycle made by Kawasaki.. The Kawasaki KX250F was co-developed with the Suzuki Motor Co. under their unique joint venture that started in 2002.

  8. List of Kawasaki motorcycles - Wikipedia

    en.wikipedia.org/wiki/List_of_Kawasaki_motorcycles

    Kawasaki KRR 150 (Ninja KR 150R/ KR 150SP/ KR 150SE/KR 150SSE, Ninja KRR 150/KRR 150 SE/KRR 150SSR, Victor 150, Serpico 150/KRZ 150, ZSR Cyclone 150, Scorpion 150 (in Argentina) (Production year: 1989–2004 and 1996's–2015 for the Ninja 150R/SS in Indonesia) 2-stroke Engine (Marketed in the Philippines, Thailand, Indonesia, Malaysia, and ...

  9. Yamaha YZ250F - Wikipedia

    en.wikipedia.org/wiki/Yamaha_YZ250F

    The Yamaha YZ250F is a motocross motorcycle first released in 2001 by Yamaha.It features a DOHC, four-stroke engine and initially had a steel frame and subframe in 2001–2002.