Everyone who at least once thought about acquiring an engine for a motor boat faced the same problem - a large range of products. Among the models of all popular manufacturers, it is difficult to keep an eye on a copy that can meet the set requirements, but at the same time will have an affordable price.
Today, 4-stroke outboard motors are gaining particular popularity due to their distinctive advantages over 2-stroke models. However, their assortment is quite large, and not everyone can understand all the subtleties of choice.
Engine differences
A comparative characteristic of all 4 tacts can be given only by comparing them with 2-stroke motors. The first distinguishing feature of the described models is a more complex design. The cycle of their work consists of four cycles - fuel injection, compression of the combustible mixture, ignition and expansion, exhaust gas emission. A complex, harmoniously working valve system is responsible for all this.
But due to the complex system of intake and exhaust strokes, 4-stroke outboard motors require high-quality fuel. But the specific fuel consumption is much lower. On average, the consumption of a 600-cubic model with a capacity of 80 liters. from. It is about 12 liters per 100 km.
Four-stroke engines are more “comfortable” - the level of vibration they produce is much lower than that of 2T models. This is due to their design. The last advantage is reliability and durability. According to user reviews, the described models last 2-3 times longer.
Who should choose a 4-stroke engine?
2T models are famous for being able to gain maximum speed in a shorter period of time. Moreover, the power of such engines is much greater, which is associated with a more efficient use of the energy of flammable fuels. Compared with them, 4-stroke outboard motors may seem too “slow”.
Indeed, four-stroke models are gaining speed more slowly, and can not boast of a lot of horsepower. Therefore, they are better suited for those who value, first of all, reliability and durability, agree to a measured trip along the river and do not save time.
Outboard Motor Power
Regardless of which unit you choose, you should focus on the right choice of model power. If you are going to use the boat for fishing, then 4-stroke outboard motors with 2-3 liters are better for you. from. Unit with a capacity of 30 liters. from. for lovers of fast travel and water skiing.
In addition, it is necessary to take into account the engine power requirements that manufacturers of floating equipment have. You can find out this parameter in the datasheet of the swimming facility. We must not forget that with an increase in power the efficiency of the installation decreases (fuel consumption increases).
Outboard motors from YAMAHA MOTOR
The transcontinental corporation YAMAHA MOTOR has been manufacturing boat motors since 1960. During this time, more than 6 million copies were released, which were highly appreciated by users from all over the world and noted as reliable, powerful and durable. 4-stroke outboard motors "Yamaha" are represented in Russia by only one series - Four Stroke. Instances of this model range have a capacity of 2.5 to 250 liters. from.
The cheapest representatives of this line cost about 60 thousand rubles, the most expensive - more than 1.5 million. The minimum engine capacity is 139 cubic meters. cm, maximum - 5330. Start is carried out using an electric starter, or manually. The maximum capacity of the built-in gas tank is 25 liters. Management can be remote, or represented by a tiller.
In general, reviews about Japanese-made models are positive. High reliability, high-quality assembly, low level of noise and vibration are emphasized. Some users complained about the large mass of some engines - it can exceed 350 kg.
Engines for boats from SUZUKI MOTOR
A division of the Japanese company SUZUKI MARINE has been producing boat motors since 1966. In the lineup there are both 2-and 4-stroke Suzuki outboard motors. All copies are famous for reliability, performance and the optimal ratio of weight and power.
The power of the models varies from 2.5 to 300 liters. from. The cheapest unit costs about 35 thousand rubles. On average, an engine with power from 4 to 6 liters. from. will have to pay 60-70 thousand for copies from 8-20 liters. from. they will require from you 120 to 200 thousand rubles. The price of the most expensive and powerful motor is at 1.2 million.
Reviews on SUZUKI's 4-stroke outboard motors are generally positive. Users also emphasize their classic performance. Particularly distinguished is the weight of the specimens, which corresponds to the power, so that the models are suitable for the characteristics of most boats.
Outboard motors Mercury
The oldest manufacturer of boat motors Mercury has a leading position in the market for a reason. The company's products are constantly being improved, so that their quality and reliability cannot be questioned. Among the four-stroke representatives, models of the Salt Water and Verado series deserve special attention.
The former are designed specifically for use in harsh conditions. Representatives of the Verado line amaze with their design. A four-cylinder four-stroke engine with in-line cylinders and turbocharging is not often found on the market.
The cheapest 4-stroke Mercury outboard motor costs about 50 thousand, the most expensive - more than one million. It is noteworthy that the mass of the most powerful engine of 3000 cubic meters. cm does not exceed 210 kg. Thanks to this indicator, as well as high reliability, high-quality assembly, users from all over the world consider these boat engines to be one of the best.