Choosing an outboard motor for a boat is always about finding a compromise between price, reliability and performance. HideaThe 9.9 horsepower model is considered one of the most popular in the brand’s lineup, as this power threshold often does not require registration with GIMS for many types of boats, which is why potential buyers are so interested in real reviews about the Hidea 9.9 outboard motor, which allow you to look beyond the facade of marketing brochures.
Owners of PVC boats and small boats often look for equipment that can confidently carry a vessel in plane with two passengers on board, but not devastate the wallet. Hidea 9.9 It is positioned as a universal solution that copies time-tested constructive solutions, in particular, technologies. YamahaHowever, as the practice of use in Russian conditions shows, this technique has its own nuances, which are not discussed in stores. In this article, we will collect and analyze the experience of use, technical features and hidden problems that you can encounter.
Analysis of forums and reviews shows that the motor causes polar reactions, from enthusiastic “goes for years without problems” to criticism of the quality of assembly of specific batches. To get an objective picture, you need to consider not only the dry numbers from the manual, but also how it behaves. two-stroke After running, how it transfers storage in the winter and how realistic it is to swell it to 15 hp Let’s analyze all aspects in detail so that you can make an informed decision about the purchase.
Technical specifications and design features
The Hidea 9.9 is based on a classic carburetor-powered two-stroke circuit, with two cylinders to ensure it operates smoothly and has an acceptable vibration level for its class, with a displacement of 169 cubic centimeters, and an electronic CDI system that does not require adjustment of gaps and provides a stable spark even at low revs. Cooling system It is implemented on the principle of forced circulation of off-shore water through a water pump located in a deadwell.
One of the key features that is often noticed in reviews is the presence of a forced lubrication system of the crank-shaft mechanism. Unlike the simplest engines, where the oil is simply mixed with gasoline, it implements the supply of lubrication under pressure to the crankshaft bearings, which theoretically should increase the life of the engine. The gearbox is made of aluminum alloy, and the transfer of torque is carried out through the gears of the conical gear. Transfer ratio It is designed to provide the optimal balance between the thrust at the bottom and the maximum speed.
⚠️ Note: The claimed power of 9.9 hp is often a software limitation. Structurally, many nodes, including the piston group and carburetor, may be identical to the 15-horsepower versions, but the throttle has a mechanical limiter.
The overall dimensions of the engine allow it to be installed on transverses of standard height. The weight of the unit in running order is about 36 kilograms, which makes it relatively transportable for one person, although it is still tedious to carry it over long distances. It is important to note the presence of a built-in fuel tank of 1.1 liters, which allows you to move briefly without connecting an external container, but for full operation owners immediately purchase an external tank of 12-24 liters.
Secret of the design
Why is Hidea like Yamaha?: The Hidea 9.9's design similarity to Yamaha 9.9F engines is not accidental. In the early 2000s, many Chinese factories acquired licenses or simply copied drawings from Japanese giants' out-of-production models, allowing decades of proven technology, spare parts availability and clear repair logic. However, casting materials and surface treatment quality may vary depending on the year of production and the specific assembly plant.
Real fuel consumption and dynamic performance
The issue of efficiency is particularly acute for boat owners, given the cost of quality gasoline and oil. two-strokeIt requires a 1:50 fuel mixture (for 1:25 break-in). The actual fuel consumption depends on the mode of operation and the load on the screw. At idle speed, the engine consumes a minimum amount of the mixture, but when entering planing, appetite increases dramatically.
According to test data and user reports, the average fuel consumption when driving half-strength (about 3000-3500 rpm) is about 3-4 liters of the mixture per hour. At full load, when the throttle is open fully, the flow can reach 5-6 liters per hour. Tohatsu or Suzuki However, it is worth considering that the real figures depend on the aerodynamics of the boat, the weight of the cargo and the condition of the propeller.
The dynamic specifications of the engine allow PVC boats up to 3.6 meters long with two passengers to be glided. The time to enter the plane depends on many factors, but on average it takes 10-15 seconds with the correct weight distribution. The maximum speed on water for a standard inflatable boat rarely exceeds 30-35 km / h, due to power limitation and water resistance. For heavier hulls or large loads, 9.9 hp may not be enough for confident plane, and the engine will operate in “traction” mode, which is not recommended for durability.
And we should also mention the low-speed work. Mikuni Or the Hidea analogs, which are very low-revving, which is important for press fishing, but if the carburetor is not perfectly tuned, you can see dips when the valve is opened abruptly, and adjusting the quality of the mixture with the screw allows you to find a balance between idling stability and idling.
Experience of operation: pros and cons according to owner reviews
By analyzing the many forums and reviews, we can identify a number of characteristic advantages that owners often note. priceIt's often one and a half to two times lower than the big competitors, and the second big thing is its maintainability, because the design of the engine is simple and easy for any mechanic familiar with two-stroke technology, and the availability of parts in markets and online stores is not a problem, and users also praise good traction at the bottom, which allows you to feel confident in overgrown bodies of water.
But there is also a spoonful of tar, the most frequent complaints being the quality of the assembly and materials, and complaints about the cranking, the imperfect fitting of the plastic casings, and the quality of the fasteners that rust after the first season. Ignition system Sometimes it fails in wet weather unless additional sealing of high-voltage caps is done, and some users note that the claimed 9.9 hp in practice feels like 8-8.5, especially against the background of more recent models of other brands.
- 🔹 Plus: Low cost of ownership and availability of spare parts in any disassembly.
- 🔹 Plus: Simple design, allowing you to carry out repairs yourself in garage conditions.
- 🔸 Minus: The quality of the aluminum casting and painting may suffer (shells, chips).
- 🔸 Minus: Noise is higher than that of four-stroke analogues or modern two-strokes with the E-TEC system.
The important aspect is the resource before the overhaul. With proper running and use of quality oil, the life of the piston group can be 500-700 hours. However, if you ignore the replacement of fuel filters and use gasoline with ethanol without adapting the carburetor, the service life can be reduced by many times. Owners who follow the equipment note that the engine runs for years, requiring only replacement of glands and candles.
Use only special two-stroke oils labeled TC-W3. Use of conventional motor oils or motor vehicle oils (JASO) will lead to rapid formation of soak and exhaust windows.
Testing procedure and first maintenance
How the initial phase of operation will go depends on half the success of the further service of the engine. Hidea 9.9 is not a formality, but a necessary process of grinding parts. Manufacturers and experienced users recommend running on water using the barrel only to check the start, but not for long-term operation, since the cooling system in the barrel can work inefficiently due to water vortices.
The breaking in process usually takes about 10 hours. The first couple of hours should be running at a speed of no more than 2000-2500 per minute, changing the load. Then you can gradually increase the speed, making short-term openings of the throttle to 75-80%. Full power in the first 10 hours is prohibited. During this period, the piston rings are being used to the walls of the cylinders and bearings to the crankshaft. It is important to monitor the temperature of the engine and the presence of the "control stream" of water.
☑️ Checklist of proper breaking in
The first maintenance (TO-1) is performed after the first 20 hours of production or after a month of operation, whichever comes first. During this period, you need to replace the oil in the gearbox, as it may appear emulsion from the initial grinding of the gears. Also, the tightening of all bolt joints, especially the fastening of the lower unit to the lower unit and the transom, since the vibration could weaken them.
When performing maintenance, it is important to check the state of the spark plug. The color of the charcoal will tell you about the quality of the engine: brick-brown indicates a normal mixture, black and velvety indicate over-enrichment, and white indicates a poor mixture and the risk of overheating. At this stage, adjustment of the carburetor may be necessary if the engine is unstable or stalls when the gas is discharged.
Hidea 9.9 Comparisons with Yamaha, Tohatsu, Honda
To understand the Hidea 9.9’s place in the market, you need to compare it to direct competitors. The main rivals in this segment are the Yamaha 9.9GMHS, Tohatsu M9.8B and various Honda modifications (although Honda is more often four-stroke). Yamaha traditionally sets standards for reliability, but also costs much more. Tohatsu is known for its “unkillability” and is often an OEM manufacturer for other brands. Hidea offers Yamaha functionality for less money, but with compromises in materials.
When weighed, the Hidea is often slightly heavier than its Japanese counterparts, due to the use of thicker metal in some units or less optimized casting. Hidea 9.9 acceleration dynamics may be inferior to Tohatsu M9.8, which is famous for its excellent torque. However, in terms of repairability and cost of parts, the Chinese brand wins over all the “Japanese”, parts for which can cost space money and go for weeks.
| Characterization | Hidea 9.9 | Yamaha 9.9 | Tohatsu M9.8 |
|---|---|---|---|
| Weight (kg) | ~36 | ~36 | ~37 |
| Ignition system | CDI | CDI / TCI | CDI |
| carburetor | Mikuni (analogue) | Mikuni | Mikuni |
| Price (orient.) | Low. | High. | Medium/High |
⚠️ Note: When buying a used motor, pay attention to the condition of the deadwell. The presence of deep bullies or traces of impact on stones may indicate hidden defects of the bent shafts, which will require expensive repairs.
The choice between these brands often comes down to budget and future plans. If you plan to ride a couple of times a season and are not willing to spend large sums on maintenance, Hidea will be a rational choice. If the boat is the main tool of mining or you go on long autonomous trips where reliability is critical, overpaying for a Yamaha or Tohatsu can be justified by calm. However, statistics show that Hidea is increasingly chosen as the main engine due to improved quality in recent years.
The Hidea 9.9 is a popular engine that covers the need for reliable traction with a minimum budget, but requires a more attentive attitude to maintenance than premium Japanese counterparts.
Typical malfunctions and ways to eliminate them
Like any appliance, the Hidea 9.9 is not without childhood diseases and typical malfunctions. One of the most common problems owners face is difficulty starting or unstable operation at idle speeds. Most often the reason lies in the carburetor: chillers can get clogged with dirt from the tank or resinous deposits of old gasoline. The solution is to regularly replace fuel filters-sulphants and use fuel stabilizers during long-term storage.
The second common problem is overheating, which can be caused by sand or algae getting on the water intake, by the wear of the impeller pump, or by the use of poor-quality oil, leading to clogging exhaust ports. The pump-pumping doe It is recommended to change every 2 seasons or when the first signs of deterioration of water circulation appear, even if there is no visible damage, as the rubber tans over time.
Ignition problems are less common, but they do. The failure of the switch or ignition coil is often associated with moisture. Prevention is simple: lubricating contacts with a spray to protect the electrical wiring and checking the condition of high-voltage wires. It is also worth keeping an eye on the condition of the glands, especially the lower one, which works in an aggressive environment, and replacing them is a preventive measure that is better done every 3-4 years.
What to do if the engine sneezes?
If the motor shoots into the carburetor or muffler, check the angle of ignition advance and the condition of the petal valves. The gap between the petals and the valve body should not exceed 0.1-0.15 mm. You can bend the petals carefully with tweezers, but it is better to replace the valve assembled with heavy wear.
Mechanical damage, such as the cut of hairpins of the mounting of lower unit, often due to poor quality metal fasteners or braces during assembly. Experienced motorists advise immediately after purchase to replace the regular bolts with better quality analogues of high-strength steel, treated with anticores, this small attachment will save you from losing the motor in the water at the most inopportune moment.
Frequently Asked Questions About Hidea 9.9
Can I swell the Hidea 9.9 to 15 hp and is it worth it?
Technically, it's possible, because the piston is often the same, you need to remove the throttle limiter and maybe replace the carburetor jellyboxes with more efficient ones, but it will lead to a loss of warranty, increased fuel consumption and potentially reduced engine life as it will run to its limits, and power above 10 hp requires registration with GIMS.
Which oil is best used for the mixture?
The best choice is semi-synthetic or synthetic oils for two-stroke motors with the markings. TC-W3Well-proven oils brands Motul, Mannol, Ravenol. The use of cheap mineral oils will lead to rapid formation of soot on the piston and candles, which will worsen the engine.
Why does the engine stop when the gas is opened?
This is a classic sign of carburetor failure, and it could be a clogging of the jelly, a mistuning of the fuel level in the float chamber, or a wear and tear of the accelerator pump (if it is in this version), and it is worth checking the tightness of the intake manifold - the air suction poorens the mixture.
Do I need to register the Hidea 9.9 outboard motor in GIMS?
Under current Russian law, engines over 10.88 hp (8 kW) are subject to registration. Since the Hidea 9.9 has a 9.9 hp capacity, it does not require registration unless it has been modified (suffused).
Which screw is better to put for a heavy boat?
For heavy boats or heavy loads, it is recommended to reduce the pitch of the propeller. A standard propeller can have a pitch of 10-11 inches. Replacing the propeller with 8-9 inches increments will allow the engine to gain speed more easily and bring the boat to the plane faster, although the maximum speed will decrease. Aluminum propellers are easier to handle, but lose geometry faster.