Choosing an outboard motor for a small boat always involves finding a balance between power, cost and reliability. In the 60-horsepower segment, which is considered the “golden mean” for most pleasure and fishing PVC boats, the engines known under the brand name occupy a special place. YamerThis name has become a household name for a whole line of power plants, which, being structural copies of proven Japanese models, offer an affordable alternative to eminent brands.
The interest in this model is due not only to the attractive price, but also to the proven design of the two-stroke engine, which provides excellent traction at low speeds. Many water engines choose this option for the completion of inflatable boats with a length of 3.5 to 4.5 meters. However, like any equipment, there are some nuances that you need to know before buying, so that the operation does not turn into a series of repairs.
In this article, we will discuss in detail the technical features, the real fuel consumption and the hidden capabilities of this engine. carburetor In this case, it may be preferable to an injector for certain conditions, and how to run the engine properly so that it lasts for many years, and understanding how to work will help you avoid the typical mistakes of beginners.
Technical specifications and design features
The Yamer 60 hp engine is based on the classic two-stroke two-cylinder design, which provides power specification that allows for the smoothing of fairly heavy boat + engine + crew complexes. The cylinder capacity is usually about 996 cubic centimeters, which is the standard for this power class. Degree of compression The engine is designed to run on AI-92 gasoline, which significantly reduces operating costs.
The most important design element is the ignition system. Modern versions use an electronic CDI (Capacitor Discharge Ignition), which does not require adjustment of gaps and provides a stable spark even when moisture is injected. This is critical for engines operating in harsh conditions. The case of the lower unit is usually made of aluminum alloy resistant to corrosion, but the quality of the painting can vary from batch to batch.
⚠️ Note: When inspecting the engine before buying, pay special attention to the condition of the daydvut. The presence of chipped paint or traces of rust may indicate improper storage or recovery from corrosion, which in the future will lead to problems with the cooling system.
The cooling system is built on the principle of intake of off-shore water through water intake holes in the daydvut. impeller The wheel is made of rubber that requires lubrication with water to work, and even for a few seconds, dry running can cause the impeller to melt and the engine to overheat, so controlling the control jet is a must before each watering.
Secret power
Why is 2 bars better for planing?: Two-stroke engines, which includes Yamer 60, make a working stroke at each turn of the crankshaft, while four-stroke engines only through rotation. This gives two-strokes a sharper reaction to the gas handle and better thrust at the bottom, which is ideal for a quick getting on plane with full load.
Fuel consumption and efficiency of operation
One of the most common questions that arises from potential owners is how much this engine eats. Since we are talking about a two-stroke engine, the consumption depends on the style of driving and the state of the carburetor setting. On average, at full gas (wide open throttle), the consumption is about 20-25 liters of benzo-oil mixture per hour. However, in trolling or quiet movement, this figure can decrease to 10-12 liters.
Remember that a special two-stroke oil must be added to gasoline, and the mixing ratio is usually 1:50 for modern oils (that’s 20 ml per 1 liter of gasoline) or 1:25 for old-style mineral oils. Oil quality plays a crucial role: the use of cheap analogues can lead to the formation of soot on the pistons and sticking piston rings, which will dramatically increase consumption and reduce compression.
- 🚤 At full speed (maximum speed) the flow rate of the mixture reaches 22-25 l / h.
- 🎣 In trolling mode (3000-3500 rpm), consumption drops to 10-12 l / h.
- ⛽ The use of high-quality synthetic oil reduces the nagaroformation and smoke of exhaust.
By comparison, four-strokes can be 20-30% more economical, but they are much heavier and more expensive to maintain. The Jamer 60 hp is characterized by high specific power, so when properly operated and set up, the engine is very efficient. carburetor It remains one of the most efficient engines in its class in terms of power per litre of fuel.
If the engine will be without work for more than 2-3 weeks, be sure to produce fuel from the carburetor or use a stabilizer, otherwise the tar will clog the jelly.
breaking in process: step-by-step instructions
Running is a critical step that determines engine life, and many owners ignore the manufacturer's recommendations, leading to piston group bullies, the process involves grinding rubbing parts (piston rings, cylinders, bearings) under load. For a 60 hp Yamer, a full break-in is 10 hours.
In the first hours of operation, you can not give full gas. The engine must operate in a gentle mode so that the metal expands evenly, and the oil film is formed correctly. Violation of the break-in mode can lead to overheating and deformation of parts, which will manifest itself after the end of the warranty.
☑️ Checklist of successful break-in
During the break-in, you need to monitor the engine temperature. If the motor overheats, you should drop the gas and check the control jet. It is also important to check the tightening of the diewut mount bolts and the transom board, since vibrations in the first hours of operation can weaken the connections. After the first 10 hours, it is recommended to replace the oil in the gearbox to remove possible metal shavings.
| The break-in stage | Time (motoclock) | Working hours (gas) | Maximum speeds |
|---|---|---|---|
| Initial. | 0 - 2 | ~50% | 3,000 rpm |
| Basic | 2 - 6 | 50% - 70% | 4,000 rpm |
| Final | 6 - 10 | 70% - 80% | 4,500 rpm |
| Full power. | 10+ | 100% | 5500+ rpm |
After 10 hours, you can go to full operation, but even after running, it is not recommended (for a long time) to keep the engine at maximum speeds unnecessarily, as this increases wear and fuel consumption.
Typical malfunctions and methods of their elimination
Despite its simplicity, the Yamer 60 engine, like any other technology, is prone to malfunctions, most often problems are related to the fuel system or ignition system, and understanding the causes helps to quickly diagnose the problem in the field. Unstable idling One of the most common complaints.
If the engine is dead at idle or floating, first of all, it is worth checking the condition of the candles and the quality of the fuel mixture. Often the cause is air sucking through the carburetor gasket or damage to the fuel hoses. Also worth paying attention to the purity of the air filter, which can get clogged with dust during long-term storage.
- 🔥 Ignition problems: Check the ignition coil and high-voltage wires for breakdown (especially noticeable in the dark or in fog).
- 💧 Cooling problems: Weak jet or no jet, clear the water intakes of the algae and check the impeller pump for wear.
- ⚙️ Problem with the gearbox: Butter emulsification (coffee-milk oil) indicates that water is entering the coils, and that they need to be replaced.
⚠️ Warning: If you notice that the oil in the gearbox has changed color to milk, immediately stop using. The water in the gearbox will cause the gears and bearings to collapse rapidly, requiring expensive replacement of the entire assembly.
Another common problem is the breakdown of the daydwoot due to electrochemical corrosion. To avoid this, the motor must be fitted with a zinc anode that takes the corrosion hit. Regular checks of the anode are a mandatory procedure when operating in salt water or water with a high content of minerals.
Rotor selection: impact on speed and traction
The regular propeller that comes with the Yamer 60 is often a compromise solution. To achieve maximum performance, you need to find a propeller for a specific boat and tasks. The main parameter here is the screw pitch, which determines how far the boat theoretically goes in one turn.
For heavy PVC boats or metal boats, and for the transport of large loads, smaller propellers (e.g. 9-10 inches) are better suited. They provide better traction and bring the vessel to the plane faster, but limit maximum speed. For light boats and high-speed walks, 11-12 inches screws are optimal.
It is important to keep track of the engine speed at full gas. The optimal range for a Yamer 60 is 5000-5500 rpm. If the engine does not spin to these values, the screw pitch is too large (the engine "chokes"). If the revolutions exceed 6000, the pitch is small, and the engine runs in vain, consuming resources.
Comparison with competitors and final conclusions
In the outboard market, the Yamer 60 competes with brands such as Tohatsu, Mercury and Hidea. Yamer's main advantage is price. The base version of the famous brand can be bought with full options for the Yamers, but the quality of casting and assembly is often higher among top brands, which affects vibration and noise levels.
However, for most fishing and water enthusiasts, the Yamer 60 remains a workhorse, easy to repair, affordable and inexpensive, and can run hundreds of hours of motorized service without major intervention.
Yamer 60 is the perfect choice for those looking for maximum power for a minimal budget and ready to pay attention to regular maintenance.
In conclusion, it is worth noting that buying this engine requires a responsible approach to the first start and break-in. If you are ready to follow the rules of operation, monitor the quality of the mixture and the condition of the units, the Yamer 60 hp will be a reliable assistant on the water, which will pay off its cost in one or two seasons of active operation.
Frequently Asked Questions (FAQ)
Which oil is best used for 60 hp Yamers?
It is recommended to use high-quality two-stroke oils labeled TC-W3. The optimal choice will be synthetic or semi-synthetic oils of well-known brands (Motul, Mercury, Tohatsu, Shell). Mineral oils are cheaper, but they form more soda and require more frequent replacement of candles and cleaning of the carburetor. The ratio of mixing for modern oils is 1:50.
Why does the engine stop when the gas is opened?
This can be caused by several reasons: clogging of the carburetor's jellyplates, improper adjustment of the accelerator pump (if any) or diaphragm, and air suction in the fuel system. It is also worth checking the fuel filter-sludge tank for water or dirt.
Can I store the Yamer 60 vertically?
Two-stroke Yamer motors, like most of their counterparts, structurally allow storage in a vertical position (on deidvut) or horizontally on any side, except where the carburetor is located (usually marked). However, for long-term storage (wintering), it is best to use a special rack or suspension to unload the lower unit and prevent deformation of the osulets.
What is the maximum weight of the boat that can withstand this engine?
Yamer 60 hp is able to confidently carry PVC boats up to 4.5-5 meters in length with a full load (3-4 people + equipment). For metal boats (kazak) the limit will be about 4 meters. Exceeding the recommended load capacity will lead to the fact that the boat will not go to the plane, and the engine will work in overload mode.