Outboard motorMay 11th, 2022 at 11:01 Automobiles Sahāranpur 75 views
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An outboard motor is a propulsion system for boats, consisting of a self-contained unit that includes engine, gearbox and propeller or jet drive, designed to be affixed to the outside of the transom. They are the most common motorised method of propelling small watercraft. As well as providing propulsion, outboards provide steering control, as they are designed to pivot over their mountings and thus control the direction of thrust. The skeg also acts as a rudder when the engine is not running. Unlike inboard motors, outboard motors can be easily removed for storage or repairs.
An inflatable boat is a lightweight boat constructed with its sides and bow made of flexible tubes containing pressurised gas. For smaller boats, the floor and hull are often flexible, while for boats longer than 3 metres (9.8 ft), the floor typically consists of three to five rigid plywood or aluminium sheets fixed between the tubes, but not joined rigidly together. Often the transom is rigid, providing a location and structure for mounting an outboard motor. Some inflatable boats can be disassembled and packed into a small volume so that they can be easily stored and transported. The boat, when inflated, is kept rigid crossways by a foldable removable thwart. This feature makes these boats suitable for liferafts for larger boats or aircraft, and for travel or recreational purposes.
2 stroke outboard engine produces the suction and compression strokes of the piston in a single action. In the same way, the expansion and exhaust strokes also occur. The expansion stroke is the stage that produces the power that drives the engine. The suction, compression, expansion, and exhaust occur in two ‘strokes’ of the piston; thus, the engine gets dubbed as ‘two-stroke.’2 Stroke Outboard Motor has been known for its fast acceleration, portability, smaller size and lighter weight. In 2-stroke motors, oil is blended with gasoline. As the fuel goes through the engine, it consumes small amounts of oil for lubrication. Therefore, oil changes are not required to power the engine because the oil is continuously injected. The customer simply maintains an oil reservoir either located in the boat or on the engine.
4 stroke board engine creates the four stages, suction, compression, expansion and exhaust. However, in a four-stroke outboard, these four stages are distributed in four strokes of the piston, thus making it a four-stroke engine. 4 stroke motor has been known for its power, low emissions, fuel mileage, lower sound level and how smooth it runs. In 4-stroke motors, there is an oil filter and self-contained oil cavity within the engine, similar to the way it works in a car. An oil change is typically required after 100 hours or one year of use.