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Motorcycles are complex machines which have a lot of parts to make them run


By Prev Info - October 16, 2022

 If you want to ride a motorcycle you need to have a basic understanding of the motorcycle's components and how they work. Motorcycles are complex machines which have a lot of parts to make them run.



The main part of a motorcycle is the engine. There are two types of engines; one is a two stoke and the other is a four stroke. The four stroke engine more efficiently, uses less fuel, and creates far less pollution than the two cylinder engine. The disadvantage is that they are a larger engine and can be more difficult to maintain. The two stroke uses more fuel, creates more pollution, but it is a much lighter and smaller engine, and it is easier to maintain.

On the two stroke engine, an air and fuel mixture from the carburetor enters the intake port. The piston then rises and compresses the mixture. The spark plug ignites this mixture and it explodes in the engine cylinder. The force of the explosion drives the piston down which in then turns the crank around. On the down ward stoke the exhaust exits by way of the exhaust valves, which in turn goes out the muffler. This happens over and over at a high rate of speed producing a running engine.

On the four stroke engine the intake values open and fuel, while at the same time air enters the camber. The spark plug then ignites this mixture which explodes and forces the piston down causing the crank to turn. The crankshaft turns, and at the same time it turns the timing chain. The timing chain then turns the camshaft. This shaft controls the exhaust valve lobes, that then push on the spring like stems which opens or close the exhaust values as well as the intake values.

Whether your motorcycle has one cylinder two cylinders or four cylinders, they all work as described above You really only need a very basic understanding as to the internal working of the engine.

The transmission is attached to the engine and it is turn by the engine, which in turn transfers that power to the rear wheel. The transmission is made up three main parts. The gear box which is either standard or an automatic, both with a final drive. If it is a standard it has a clutch.

The transmission has a series of gears in different sizes. When the operator selects a gear on the foot shift lever the gears are locked together. This gives the rider the different speeds of the motorcycle.

The clutch engages or disengages the engine and transmission from a hand control lever on the motorcycles handle bars. This allows the rider to shift gears in the transmission. On an automatic transmission the unit shifts itself with engine speed but you also have the ability to do this manually. The final drive transfers the power from the transmission to the rear wheels by a chain or a belt or a shaft drive.

The fuel system is made up of the fuel tank, the fuel lines, as well as one or two carburetors. On the newer bikes they may be direct injection also known as fuel injection.

The electrical system starts the engine. The battery powers most of the motorcycle. This includes lights, horn, and any accessories on the bike. The charging system maintains and replaces any power that is used from the battery. Some bikes have an electric starter just like your car. If the bike is out of gear you only have to turn the key or on some of the older models push a button to start.

As with any new adventure it is a good choice to have lessons by a professional trained in giving motorcycle lessons





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