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This article has been moved to the Cyclepedia Common Service Manual. Read more here - https://www.cyclepedia.com/manuals/online/free/basic-information/vin-location/ … [Read more...] about Vehicle Identification Number (VIN)

A mechanical or electrical device used to control the output of a motorcycles charging system to protect the battery from being over charged. Over charging can cause permanent damage to a battery. … [Read more...] about Voltage Regulator

Pressure which is less than atmospheric pressure. In terms of a motorcycle engine it is the difference in air pressure between the engine's intake manifold and Earth's atmosphere. As the piston travels downwards on its stroke it creates a low pressure void that will be filled by the incoming … [Read more...] about Vacuum

An engine configuration with two cylinders arranged in a V instead of inline. The angle between the cylinders is commonly 45 degrees, 60 degrees or 90 degrees, although a 90 degree angle technically speaking should be called an L-twin engine, but we won't say anything if you tell people that your … [Read more...] about V-twin Engine

Viscosity, in terms of motorcycle oils, refers to the thickness of an oil. A light or thin viscosity oil is commonly used in fork tubes while a heavier or thicker viscosity oil is often found in engines and transmissions. It is not uncommon to see multi-viscosity engine oils that are engineered to … [Read more...] about Viscosity