Motorcycle-Glossary.com » V

Valves (Intake and Exhaust)

admin — Sat, 25 Aug 2007 20:00:24 +0000

Poppet valves within a four-stroke cylinder head that open and close to allow fuel/air into the combustion chamber, and open and close to vent the burned gas. Four-valve cylinder heads can more efficiently pump fuel/air in and pump spent gas out, increasing performance.

Valvetrain

admin — Sat, 04 Aug 2007 20:00:42 +0000

An all-encompassing term used to describe the mechanisms and parts which control the operation of the valves in an internal combustion engine.

VIN: Vehicle Identification Number

admin — Tue, 24 Jul 2007 20:00:28 +0000

Used to uniquely identify motor vehicles.

Viscosity

admin — Fri, 13 Jul 2007 20:00:50 +0000

Term applying to a lubricant. Defines the liquid’s coherence (the level of attachment between the molecules).

V-Twin

admin — Fri, 22 Jun 2007 20:00:35 +0000

Two-cylinder engine layout in which the cylinders form a “V.”