Choosing a suspended boat-engine For an inflatable vessel or light aluminum boat, it is always a matter of compromise between power, weight and budget. In recent years, Chinese brands have firmly established themselves in the Russian market, among which branded products have occupied a special niche. Hidea Of particular interest to water-engineers are 9 horsepower models, which, due to their design features, often allow them to be legally swelled to 9.8 hp, which is critical for full-load glides.
Many users are looking for information on the request “outboard motor Haidi 9 and 9 reviews”, trying to understand whether to trust the Chinese manufacturer or better to overpay for the Japanese. Two-stroke engine This series has become a hit with sales due to its affordable price and the presence of a forced lubrication system, which saves the owner from constantly mixing oil with gasoline. In this article, we will discuss in detail the technical nuances, real-world experience and hidden capabilities of these units.
It is worth noting that Hidea HD9.8 And the HD9.0, its younger brother, is technically almost identical, with only the carburetor settings and the switch firmware, making them attractive to those who want to get the most performance for the lowest possible amount of money, but are afraid of a cat in a bag. Let's see what's really hiding under the plastic casing and whether these motors meet the expectations of Russian fishermen and tourists.
Technical features and engine design
The heart of the models in question is a time-tested two-stroke scheme with a horizontal arrangement of cylinders. Workload It is 169 cubic centimeters, which is the standard for the 9.8 hp class. Engine design implies the presence of three cylinders in a row, which ensures relatively smooth operation and less vibration compared to single-cylinder counterparts. CDI (capacitor ignition), which is reliable and does not require complex maintenance.
And the lubrication system is particularly noteworthy, and unlike the classic two-stroke system, where you have to manually mix oil with fuel, motors are very powerful. Hidea 9/9.8 is equipped with an oil pump, which means you put pure gasoline in one tank and oil in a separate tank. crankshaftNot only is it convenient, it's also economical: oil consumption is reduced by about 30 percent compared to hand-made mixing.
⚠️ Note: Despite the oil pump, during the primary break-in period (the first 10 hours), it is strongly recommended to add oil to the gasoline forcefully in a ratio of 1:25, this will provide additional protection for rubbing parts while the piston group is laundered.
The cooling system operates on the principle of intake of off-shore water through a water intake located in lower unit. impeller The pump is made of a wear-resistant material, but it is sensitive to dry work. The gearbox is made of aluminum alloy, and the torque is transmitted through the gears of the oblique engagement, which reduces noise levels during operation.
The secret of exhaust system design
The exhaust gases in the Hidea 9/9.8 engines are removed through the screw hub, which creates a characteristic gurgling sound at idling speeds and improves cylinder purging, increasing engine efficiency at high revs.
The difference between 9.0 and 9.8 hp modifications
The main question that worries customers: what is the real difference between a 9 hp badge engine and 9.8 hp? powertrainThe cylinder block, piston group, crankshaft and crankcase are identical, and the difference lies in the restrictions imposed by the manufacturer to meet different environmental and certification requirements in different countries.
Model Hidea HD9.0 It's artificially strangled to 9 horsepower, and this is achieved in two main ways: by limiting the fuel supply through the jellybars of the carburetor and by limiting the opening of the throttle by a mechanical stopper or by switching software. HD9.8 It is free of these limitations and allows you to unlock the full potential of the engine, giving the declared power at the output.
For the user, this means that when you buy version 9.0, you get a motor that is physically capable of developing 9.8 hp, but doesn't do it out of the box. Many owners resort to the "smothering" procedure, removing the restraints. warranty manufacturer, as interference with the design is easily fixed.
Technically, the Hidea 9.0 and 9.8 hp are the same engine, the only difference being the software and mechanical power constraints that you can remove if you want.
real owner reviews: pros and cons
Analysis of powerboating forums and specialized resources provides an objective picture. boat-engine There are a number of distinct advantages and disadvantages in different settings, and there are different opinions, but the overall trend is positive, especially when you consider the price segment.
Among the positive points are most often mentioned:
- 💪 Excellent traction at low revs, which is important for trolling and anti-current movement.
- 💰 Attractive cost compared to analogues from Yamaha or Tohatsu.
- 🛠 Availability of spare parts and their low price on the market.
- 🔇 Relatively quiet work for a two-stroke engine.
But there are also nuances that are pointed out. proprietorshipSome complain about the quality of plastic casings, which can be fragile in the cold. Others note the need to initially adjust the carburetor, as from the factory the mixture can be too poor or rich.
Here’s what real users say about reliability:
- 🗣 « I've been back on the Volga for two seasons, zero problems. The oil eats economically, starts from the pond.
- 🗣 « The plastic casing cracked during the transport in the cold, had to be changed. The engine itself works like a clock.
- 🗣 « After 50 hours of motoring, I had to change the omentums, the oil started to flow, but for a Chinese man, that's normal.
specifications comparison table
For ease of perception, we'll put the basic parameters in a single table, which will help you quickly navigate the numbers and understand whether this unit is suitable for your tasks, and it's worth remembering that the real performance may vary slightly depending on the condition of the particular instance and the operating conditions.
| Parameter | Hidea HD9.0 | Hidea HD9.8 | Units of measurement |
|---|---|---|---|
| Power | 9.0 | 9.8 | hp |
| Workload | 169 | 169 | cm3 |
| Weight. | 36 | 36 | kilogram |
| Lubrication system | Mix/Pump | Mix/Pump | - |
| Fuel. | AI-92 + butter | AI-92 + butter | - |
As you can see from the table, weighting And that confirms the idea that we have one design, and the power difference is only achieved by settings, and when you choose between these two models in the store, if the price difference is significant, it makes sense to take 9.0 and refine it yourself, or pay for 9.8 to keep the warranty.
When buying, be sure to check the equipment: the presence of a remote tank, a fuel hose with a pear and a set of tools. Often sellers try to sell the "naked" engine at full price.
Instructions for running and first start
Proper running is the key to a long life for your boat-engineNeglecting this stage can lead to cylinder bullies and piston group failures in the first seasons, a process that is not complicated, but requires discipline and attention to detail.
The first start is better done in a barrel of water or on a pond. Make sure that the cooling system works: a stream of water should flow from the control hole. In the first 10 hours of operation, it is recommended to operate the engine in a gentle mode, without opening the throttle more than 50-70%.
Checklist of correct break-in:
☑️ Engine break-in plan
After each release to the water, especially at the beginning of operation, you need to inspect (inspect) the lower part of the engine for oil and fuel leaks. Lubricant If you notice that the oil level in the tank does not decrease when you are working actively, then the pump is not functioning, and you need to urgently switch to manual mixing of oil into gasoline until the malfunction is corrected.
⚠️ Warning: Never shut down the engine immediately after high-speed operation. Give it 2-3 minutes to idle, which is necessary to equalize the temperature and prevent candles and piston rings from coking.
Maintenance and preparation for winter storage
And boat-engine You've been happy with the reliable work for a long time, it's important to prepare it for winter. Two-stroke engines are sensitive to corrosion and residues in the carburetor. Ignoring conservation can lead to the fact that the engine will not start in the spring.
The first thing you need to do is to extract all the fuel from the carburetor float chamber, so you can shut off the fuel supply crane and let the engine stall itself, or disconnect the fuel hose and produce the residue of gasoline, and then you put about 5-10 ml of special conservation oil (or a conventional two-stroke) into the cylinder through the candle hole and make a few turns of the crankshaft with a starter so that the oil is distributed through the cylinder mirror.
The main stages of preparation for storage:
- ❄️ Complete cleaning of dirt, algae and salt deposits.
- 🛢 Replacement of oil in the gearbox (if it became milky color - water got into the gearbox).
- 🕯 Turning candles and examining their condition.
- 📦 Storage in a vertical position in a dry room.
It is also recommended to lubricate all external metal surfaces, drive-thrust And gas cables with penetrating lubricant (e.g., WD-40 or corrosion-resistant analogues) that will prevent movable parts from oxidizing during downtime.
How to check the condition of the gearbox?
Put the air compressor hose in the water next to the gearbox and give the air, and if you're going bubbles, the leakage is broken, you need to replace the osteoils.
Frequently Asked Questions (FAQ)
What is the best fuel to fill in Hidea 9/9.8?
The manufacturer recommends that gasoline with an octane number not lower than AI-92. AI-95 is possible, but does not provide significant advantages for this degree of compression. The main thing is that the fuel is fresh and high-quality. Old gasoline can oxidize and clog the jelly carburetor.
Can this motor be used in seawater?
Yes, engines. Hidea However, after each outing, the cooling system must be thoroughly washed with fresh water to prevent corrosion of the pump's internal channels and impellers.
What is the default screw and can it be changed?
A 9-inch diameter aluminum propeller is standardly installed with a pitch corresponding to power. For heavy boats or heavy loads, it makes sense to consider installing a screw with a smaller pitch to improve acceleration dynamics, or a stainless steel screw for durability.
Why does the engine smoke when it's working?
Plenty of smoke can be a sign of too rich a mixture (lots of oil) or oil pump malfunction. If the smoke is blue and there is a lot of it after running, check the adjustment of the carburetor and the condition of the candles. White steam when warming up is normal.
Where can I find parts on Heidi?
Engine parts. Hidea It is widely represented in specialty stores and marketplaces, as the design is unified with many other Chinese brands (Parsun, Tohatsu compatible models), problems with the presence of piston groups, carburetors and lower units usually do not arise.