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  2. Firing order - Wikipedia

    en.wikipedia.org/wiki/Firing_order

    For this inline-4 engine, 1-3-4-2 could be a valid firing order.. The firing order of an internal combustion engine is the sequence of ignition for the cylinders.. In a spark ignition (e.g. gasoline/petrol) engine, the firing order corresponds to the order in which the spark plugs are operated.

  3. Spark plug - Wikipedia

    en.wikipedia.org/wiki/Spark_plug

    Spark plug with single side electrode An electric spark on the spark plug. A spark plug (sometimes, in British English, a sparking plug, [1] and, colloquially, a plug) is a device for delivering electric current from an ignition system to the combustion chamber of a spark-ignition engine to ignite the compressed fuel/air mixture by an electric spark, while containing combustion pressure within ...

  4. Spark arrestor - Wikipedia

    en.wikipedia.org/wiki/Spark_arrestor

    The technical requirements are outlined in Forest Service Specification FS5100-1. All spark arresters meeting the requirements of 36 CFR 261.52 must be certified and listed in the USDA Forest Service Spark Arrester Guide. This guide is a comprehensive directory of all qualified products available in the United States, and is published biannually.

  5. Ignition coil - Wikipedia

    en.wikipedia.org/wiki/Ignition_coil

    An ignition coil is used in the ignition system of a spark-ignition engine to transform the battery voltage to the much higher voltages required to operate the spark plug (s). The spark plugs then use this burst of high-voltage electricity to ignite the air-fuel mixture. The ignition coil is constructed of two sets of coils wound around an iron ...

  6. List of drill and tap sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_drill_and_tap_sizes

    Below is a comprehensive drill and tap size chart for all drills and taps, ... Close fit [9] Free fit [10] 0.2540 0.01000 87 ... (spark plug) 9.0932 0.35800 T

  7. BMW F series single-cylinder - Wikipedia

    en.wikipedia.org/wiki/BMW_F_series_single-cylinder

    The BMW F650 is a family of motorcycles developed by BMW Motorrad beginning in 1993. [2] Models included the F650St Strada and from 1994, the F650 (dubbed the 'Funduro') which, due to some subtle differences, was considered to be a more dual/multi purpose motorcycle with some off-road capability. The 1993 - 2000 F650 was the first single ...