subject: 2 Strokes or 4 Strokes, Which Outboard Engine to Choose? [print this page] 2 Strokes or 4 Strokes, Which Outboard Engine to Choose?
Outboard engines consist of internal combustion engines, gasoline-powered spark-ignition, which is used in
Marine propulsion for all types of commercial as well as light recreation boats.
Generally outboard engines get attached to boats in order to propel them through the water. Basically there are three primary components included in a complete outboard engine such as the power head, the midsection and the gear case assemblies. Power heads contain the internal combustion engine required to propel the boat. The midsection contains the tilt/trim mechanism, steering and the housing and attachment assembly. The gear case contains the drive shaft, transmission and propeller.
Usually outboard engines are of two types; 2 stroke and 4 stroke outboards. Depending on the intended use, both types have their own advantages and disadvantages. Consider following points that will certainly help you choose which outboard engine is best for your type of boat.
2 stroke outboards: This would be the engine of choice as this type of outboard engines is lighter and faster. When it comes to resale, 2 strokes are cheaper and keep their value better. Apart from this, the design of these engines are less complex, it means problems are less likely to arise. However there are some disadvantages to the 2 stroke outboard engine. They are comparatively more polluted so they are not so kind on the environment. The 2 stroke engines are allowed to get lubricated by the oil which is then mixed into the gasoline, meaning the exhaust is smoky and contains unburned oil, which in turns pollutes the water. But today various outboard manufacturers are looking to find new ways of producing new outboards with same power and having less pollution. In addition, these manufacturers provide you with Online directory displaying list of outboard engine for sale.
4 stroke outboards: This type of engines is quieter, smoother and more economical. Due to slow speed and weight, they are normally chosen for lakes and rivers. 4 stroke outboard engines is the better choice as they produce less smoke and is kind to the environment. However 4 stroke engines are more complicated and often require more repairs. Generally 4 stroke outboards are heavier, so if you own a smaller boat it may not the able to hold the weight of a 4 stroke engine. As these are new outboard engines, they are continually being improved to make purchase and repair easier.
