Choice outboard For a boat, it often becomes a challenging quest, where the budget is faced with the desire to get reliable equipment. In the context of economic instability, many brands appear on the market, offering affordable solutions, and among them stand out. SharmaxThis manufacturer actively occupies the niche of budget units, promising decent traction for reasonable money, which makes it popular among owners of small PVC boats and aluminum "kazak".
But should you skimp on the powertrain that should be your safety on the water? Many water-engineers are skeptical of "Chinese" and prefer to pay more for famous Japanese or American names. production China has gone a long way, and many factories are now building machines under license or with the same equipment as the big brands, and let's look at what's underneath the shell of Sharmax engines.
In this article, we're not just going to recapitulate the dry specifications from the catalogue, but we're going to figure out how it's going to behave. Sharmax In real life, what are its weaknesses and strengths, you will learn why this engine can be the best choice for a summer resident or a fisherman, and what nuances should be considered before buying, so as not to be disappointed in the purchase.
Overview of model range and technical features
Model range Sharmax It covers a wide range of needs, from compact “sailing” for quiet water to more powerful versions for planing, and is based on two-stroke engines, which are valued for their simplicity of construction and ease of maintenance. Two-stroke cycle It allows for high power density with a minimum weight, which is critical for inflatable vessels with limited capacity.
The design of the motors is the classic: lower unit, mid-engine and lower unit leg with screw. Special attention was paid to the cooling system, which in most models works on the principle of water intake through the intake holes, this ensures efficient heat removal even during long work at high speeds, although it requires careful attention to the cleanliness of the water intake channels.
⚠️ Warning! Make sure to check the integrity of the package and the availability of all components when buying. Unlike premium brands, assembly quality control at the manufacturer may be less stringent, so an initial inspection before launch is mandatory.
An important element is the ignition system. Sharmax It uses electronic CDI ignition, which provides a stable spark and easy start of the engine in all weather, which greatly simplifies the life of the owner, eliminating the need to change the candles often or adjust the gap in the interrupter, as was the case in older carburetor models.
When choosing a model, pay attention to the length of the lower unit. Inflatable boats are most often suitable for a short leg (S), whereas metal boats with a standard height transom may require a long leg (L).
Comparison with competitors: Tohatsu, Hidea and Yamaha
To understand the place Sharmax In the market, you have to compare it to direct competitors. Hidea and TohatsuAnd many of the parts, like carburetors, ignition systems, and even the geometry of the cylinder blocks, can be interchangeable. spare parts It is easier to find and repairs are cheaper.
Unlike in the past. Yamahawhere you pay a significant markup for brand and marketing, Sharmax It offers a clean technique, and the price difference can be as high as 30 to 40 percent, which is a big factor for many, but it's worth noting that the materials in the casings and the quality of the plastic in Japan are often higher, less prone to sunburn and microcracks over time.
- 🔹 Price: Sharmax is significantly more affordable than Yamaha and Mercury, competing in cost with Hidea and Sea-Pro.
- 🔹 Resource: With proper break-in, the engine life is comparable to the budget lines of Tohatsu, amounting to about 3000-4000 moto hours before major repairs.
- 🔹 Liquidity: Sharmax engines lose in price faster than Japanese counterparts, due to the prejudices of buyers.
If we consider eco-friendliness And the noise level, here. Sharmax The vibration level at idle speeds can also be higher, which is solved by installing additional dampers or adjusting the carburetor well, but for fishing and resting on weekends this level of comfort is quite acceptable.
breaking in process: step-by-step instructions
Right. break-in It's the foundation of a long life for your motor, and neglecting this stage is guaranteed to lead to piston group bullies and loss of compression in the first seasons, taking about 10 hours of engine life and requiring strict adherence to fuel mix proportions and operating modes.
The fuel mixture is recommended for starters, and during the break-in period, it is recommended to use AI-92 or AI-95 gasoline and high-quality two-stroke oil with a tolerance of TC-W3. The mixing ratio should be 1:25 (40 ml of oil per 1 liter of gasoline), which is richer than the standard 1:50 required for normal operation, this is necessary for enhanced lubrication of rubbing parts.
☑️ Checklist for break-in preparation
The process itself is divided into several stages: the first 30 minutes the engine should work at idle speeds, not exceeding 2000-2500 rpm. Then follows the cycle with short-term increases in speeds to 3500-4000, but not more than 2-3 minutes in a row. Full gas is strictly forbidden to give until the first 5-7 liters of the mixture are produced.
⚠️ Attention! Never run in dry or in a mixture with the wrong proportion of oil. Overheating of the piston group in the first minutes of operation can irreversibly damage the cylinder, and the engine will have to be carried into service under warranty.
After the first 10 hours (or 3-4 tanks) are developed, it is recommended to replace the spark plug and check the tightening of all bolt joints, since vibration could weaken them, only after that you can switch to the standard 1:50 mixture and operate the engine at full strength.
Maintenance and care of the gearbox
Regular. maintenance It allows you to extend the life of the unit and avoid costly breakdowns in the high season, and you should focus on the gearbox, which takes all the impacts from water, sand and possible underwater obstacles, and timely replacement of the lubricant is key.
The gearbox needs to change the oil every season or every 100 hours, and this is done by putting the motor upright, twisting the bottom and top screws of the drain holes and squeezing the old lubricant of the new one until a clean jet without air bubbles appears. transmission-lubricant Normal litol or solidol will not work.
| Frequency | Action. | Materials required |
|---|---|---|
| Every launch | Visual inspection, checking the tightening of screws | Vetash, keys. |
| Every 10 hours. | Candle check, scald cleanup. | Candle key, brush. |
| Every season (100 hours) | Replacement of oil in the gearbox, lubrication of slits | Reductor oil, syringe |
| Every 2 seasons | Replacement of fuel filters, check of the carburetor | Filters, cleaner |
It's also important to monitor the condition of the lower unit pipe and the anti-cavitation stove, and the accumulation of algae or silt can disrupt cooling, and after each exit on salt water, the motor must be thoroughly washed with fresh water to prevent it from becoming a smog. corrosion aluminum alloys.
How to check the condition of the oils?
Put the lower unit in a tank of water and start the engine. If there are air bubbles coming from under the glands, then the sealing is broken and the seals need to be replaced.
Typical malfunctions and ways to eliminate them
Even the reliable Sharmax It can be a problem, especially if you're operating in harsh environments, and one of the most common problems is that you're idling or you're running a dead engine. carburetor: clogging of chiclairs or water entering the fuel system.
Another common situation is overheating, and if you notice that the control hole has stopped flowing or its pressure has become weak, immediately turn off the engine. The reason may be because a foreign object enters the water intake or the impeller of the water pump fails. Replacing the impeller is a simple procedure, but requires removing the lower part of the lower unit.
- 🔸 Ignition problems: The engine won't start or triple. Check the candle (plaque, gap), high-voltage wire and coil.
- 🔸 Engine knock: It may indicate wear on crankshaft bearings or rod fingers, requiring immediate intervention.
- 🔸 Oil leak: Often occurs due to wear of the ducts of the deidvalve or damage to the gaskets.
For many problems, it's useful to have a pressure gauge on hand to check for compression, a normal value for two-stroke engines. Sharmax If the compression is below 5 atmospheres, the engine will require a bulkhead.
90 percent of the problems with starting and operating the Sharmax engine are related to the quality of the fuel mixture and the condition of the spark plugs.
Where to buy and what to pay attention to when choosing
Purchase Sharmax It is best done at official dealers or in large specialty stores that provide a guarantee and have their own service centers. Buying "hands-on" or on unverified sites carries the risk of obtaining defective goods or a used motor disguised as a new one.
Be sure to require a warranty card and engine check before sale. The kit usually includes the engine itself, the propeller, a spare candle, a set of tools and instructions. The absence of any elements may indicate that the engine has already been opened or it is “restored”.
It's also important to clarify the availability of spare parts for sale. Sharmax In accordance with many Chinese products, specific parts (carburetors of a specific modification, unique casings) can only be supplied to order. Make sure that your region has a service ready to take up the repair of this brand.
Which octane of gasoline is best used for Sharmax?
The manufacturer recommends the use of AI-92 gasoline. the use of AI-95 is allowed, but does not give significant advantages for two-stroke engines of this power, and in some cases can lead to earlier detonation combustion if the angle of advance of ignition is not adjusted correctly.
Can I use the Sharmax motor in salt water?
Yes, you can, but with a mandatory freshwater wash after each exit, the aluminum alloys used in lower unit are subject to galvanic corrosion in seawater, and it is also recommended to use a spray preservative to protect the outer surfaces.
Why does the engine smoke when it's working?
The excessive smoke can be due to the wrong proportion of oil in the mixture (too much oil), the use of low-quality oil or incomplete combustion of fuel due to a rich mixture.
Do I need to register the Sharmax motor in GIMS?
Registration is subject to engines with a capacity of more than 8 hp (inclusive), if the weight of the engine itself exceeds 30 kg, or if the total power of all engines on the boat exceeds 8 hp The exact requirements depend on the current legislative norms of the Russian Federation, so please specify the current information in the local branch of the GIMS.
How to store the engine in winter?
For winter storage, you need to completely drain water from the cooling system (purging or tilting), develop or drain fuel from the carburetor, lubricate the internal cavities of the engine with conservation oil and store in a dry room in an upright position.