The market for outboard motors for small boats is full of offers, among which Chinese brands occupy a significant niche, offering an affordable alternative to expensive Japanese and European counterparts. Kamisu outboard motor 5 2t It is one of the units that fishermen and small PVC boat owners often seek to save money without critically losing reliability, and unlike the four-stroke brethren, it is attractive because of its simplicity of construction, lighter weight and the ability to transport quickly in any position.
Many potential buyers are wondering if it is advisable to purchase a two-stroke version with a capacity of 5 horsepower. The answer lies in the specifics of operation: if you want maximum traction at the start, the ability to quickly get on plane with one person on board and minimal maintenance costs, then this option looks preferable. Kamisu It has established itself as a brand offering a good value for money ratio, which makes it a popular choice for beginners in water-motor theme.
In this article, we will discuss in detail all aspects related to the purchase and operation of this model, you will learn about the real performance, features of the break-in, the maintenance required and the typical problems that you can face. outboard motor Kamisu 5 2tIn order not to run into counterfeits, and whether it is worth to contact the products of this manufacturer in the current market conditions.
Technical specifications and design features
In detailed consideration Kamisu 5 hp The 98 cubic centimeter two-stroke engine is capable of a maximum rotational speed of a crankshaft of 5,500 rpm, which is standard for this power class. The weight of the unit is only about 20-21 kilograms, which makes it easy to carry it to one person and install it on light inflatable boats, where every extra kilogram counts.
The ignition system in this motor is implemented through an electronic CDI, which ensures stable spark formation even with a discharged battery, since an external source of current in idling mode is not required for the operation of the magdino. Fuel system It includes a built-in fuel pump and membrane-type carburetor, which is less sensitive to engine tilts than float-based counterparts, which is especially important for fishermen who often catch in windy weather or during the course when the boat is constantly rolling.
The engine is cooled by forced off-board water through the system of channels in lower unit. It is important to note that the design of the water pump is made using a rubber impeller, which requires periodic replacement or lubrication during prolonged downtime. The body of lower unit is made of aluminum alloy resistant to corrosion, but the quality of painting can vary from batch to batch, so after purchase it is recommended to carefully inspect the surface for chips.
To control the thrust, a ramp located on the upper part of the lower unit is used, which allows not only to adjust the speed, but also to switch gears. Transmission It has three positions: front, neutral and reverse. Switching is done by turning the rummel, which is common for most water-engines. The exhaust of gases occurs through the hub of the propeller, which reduces the noise level somewhat, although the two-stroke engine still remains louder than the four-stroke counterparts.
When buying, be sure to check the equipment: some sellers may not put the key to remove the candle or spare mount bolts in the basic set.
Advantages and disadvantages of the two-stroke model
Making a decision outboard motor Kamisu 5 2tThe main advantage is power density: a two-stroke engine with the same volume produces more horsepower than a four-stroke engine and weighs much less, which makes the boat more dynamic and responsive to control, which is especially appreciated when trolling or moving quickly between points.
But there's a downside to this: two-stroke operation involves burning the oil-gasoline mixture, which leads to higher fuel consumption and higher emissions, and they also run at higher revs, which increases noise and vibration. Resource Two-stroke engines are traditionally lower than those of four-stroke engines, due to more intense wear of rubbing pairs, although with proper operation and high-quality oil, this figure can be quite acceptable for amateur use.
- 🚀 High power specification: excellent acceleration and the ability to bring the boat to plane even with minimal power.
- ⚖️ Low weight: ease of transportation and installation on light boats without the need to strengthen the transom.
- 🛠️ Ease of maintenance: The design allows for repairs in the field with a minimum set of tools.
- 💸 Low cost: The purchase price and parts are significantly lower than that of competitors with a four-stroke cycle.
And the storage specifics are also important. Unlike four-stroke engines, two-stroke engines don't require a strictly vertical position when transporting, but the oil-gasoline mixture can be delaminated when you're out of bed for long periods, so if you plan to leave the boat on the water for the whole season or keep the full-tank engine for the winter, you may have problems starting and running the carburetor.
Where and how to buy the right engine for Kamisu
The question is where is best outboard motor Kamisu 5 2tThe market offers several sales channels: specialized water appliance stores, large Internet sites, bulletin boards and direct deliveries from distributors. Buying from the official store gives the seller's guarantee, the possibility of pre-sales preparation (bolt tightening, compression checks) and expert advice, which is critical for the beginner.
Buying a motor on marketplaces or on the announcement can save money, but it carries risks. Often, under the guise of new engines sold after repair or having hidden defects. compression It should be within 7-9 atmospheres for a working engine, and also pay attention to the condition of the lower unit: the absence of backlashes in the gearshift and rotation of the propeller shaft indicates a good condition of the gearbox.
It is important to make sure that you have a service book and instructions in Russian. Kamisu - a brand that is actively supplied in the CIS, so there should be no problems with language localization. If the seller offers goods without documents or with instructions only in Chinese, this may indicate a "gray" import, which will complicate warranty service in the event of a breakdown.
⚠️ Attention: Never buy a motor if you see signs of exploitation on the outside: scuffs on the lower unit, traces of fuel on the body, scratches on the screw or damage to the anti-cavitation stove. These are clear signs that the engine was in use.
How to distinguish the original from the fake?
The original Kamisu motors are clearly marked on the lower unit, well-assembled carburetor (usually Mikuni or its analogues) and smooth painting without leaks. Counterfeiting often sins with backlashes of the tiller and the use of cheap plastic in the mounting units.
Proper breaking in: instructions and nuances
After you've succeeded. outboard motor Kamisu 5 2t And then we get it to the pond, and the most important step is running it in, and neglecting it reduces the engine life by a few times, and it's necessary to do the piston group, the rings, the bearings, and it takes about 10 hours, and you can't put the full load on the engine.
The first hours of operation should be spent on an enriched mixture. To do this, more oil is added to gasoline than is recommended for continuous operation. Usually the ratio is 1:25 (for 1 liter of gasoline 40 ml of oil), whereas after running it goes to 1:50. The engine should operate in a gentle mode: the first 2-3 hours - at idle speeds, then gradually increasing the load, but not exceeding 50-60% of the maximum power.
☑️ Checklist before first launch
During break-in, carefully monitor the engine temperature and the presence of a jet of water from the control hole. If the jet is weak or absent, immediately shut down the engine to avoid overheating and jamming. It is also recommended after the first 2 hours of operation to check and tighten the fasteners if necessary, since the vibration of the new engine can weaken the connections.
| The break-in stage | Time to work. | Throttle mode | Proportion of mixture (oil: petrol) |
|---|---|---|---|
| Initial warming up | 10-15 minutes. | Idle move | 1:25 |
| First stage | 2 hours | Up to 30% capacity | 1:25 |
| Second phase | 4 hours | Up to 50% capacity | 1:25 |
| Third stage | 4 hours | Up to 70% capacity | 1:25 |
| Completion | After 10 hours. | Full power. | 1:50 |
Maintenance and preparation for winter storage
Your durability Kamisu 5 Regular oil change in the gearbox is a mandatory procedure that should be carried out once a season or every 50 motor hours. The oil should be transparent; if it has acquired a milky shade, then water has entered the gearbox, which requires replacing the osteoils.
The grease of the lower unit also requires attention, and the screw shaft and the screw landing site must be periodically cleaned of algae and old lubrication, applying a new layer of water-resistant lubrication, which will prevent the screw from boiling and corrosion of the shaft. Ignition candle checked every 10-15 hours: the coar should be brick in color, black plaque indicates a rich mixture, and white - poor or overheating.
Winter preparation is critical. If the engine is two-stroke, you can't leave the carburetor and fuel system a mixture of gasoline and oil for a long period, because the gasoline evaporates and the oil cokes the jellycocks. You need to extract all the rest of the fuel from the float chamber, let the engine stall itself, and it's also recommended to remove the candle and pour a few blocks of engine oil into the cylinder, turning the crankshaft for preservation.
The main mistake in storage is leaving the motor in an upright position without draining water from the cooling system, which can lead to rupture of the block when freezing.
Typical malfunctions and methods of their elimination
Even the reliable boat-engine Kamisu 5 2t One of the most common problems is difficulty starting, most often it is the spark plug (baking, wrong gap) or the quality of the fuel mixture, if the candle is wet but there is no spark, it may be the ignition coil or the mass contact is broken.
The second common problem is overheating, which is often caused by clogging of cooling channels or wear of the impeller pump. If you notice that the engine has become louder or the exhaust sound has changed, immediately check the cooling system.
Vibration and noise may indicate damage to the propeller or the entry of a foreign object (swings, algae) on the shaft. LeskaIf you're winding on a shaft, you can cut the oede, which will cause a serious breakdown, so you should visually inspect the lower unit after every trip in overgrown areas.
⚠️ Attention: Don't try to remove the propeller if you have a line wound on the shaft by simply pulling it. Leaf can damage the edge of the osteoil when you remove it. Carefully cut the line with a knife or blade while scrolling the shaft.
What to do if the engine is stalled at high speeds?
This is most often a sign of a lack of fuel (a jet lag or a fuel filter is clogged) or a tank ventilation failure (a valve is clogged in the lid).
FAQ: Frequently asked questions
Which oil is best used for a mixture with gasoline?
For two-stroke engines Kamisu It is recommended to use special oils labeled TC-W3. They are designed for water cooling and provide the necessary lubrication and cleanliness of the engine. The use of oils for air cooling (for example, for chainsaws) can lead to the formation of soak and engine failure.
What is the maximum weight of the boat that can withstand this engine?
Power 5 hp is enough for a confident output on the plane PVC boat with one person and equipment with a total weight of up to 120-130 kg. For two people or more heavy metal boats, the engine is also suitable, but plane may not be, and the movement will occur in displacement mode at a speed of 6-8 km / h.
Do I need to register a boat with this engine in GIMS?
According to the current legislation of the Russian Federation, small vessels with an engine of more than 8 kW (about 10.88 hp) are subject to registration. Kamisu 5 hp. has a power of less than 10 hp, registration in the GIMS is not required for it if the total weight of the equipped vessel does not exceed 200 kg.
Can this motor be used in seawater?
It is possible to use a motor in salt water, but after each trip, you need to thoroughly wash the cooling system with fresh water. Aluminum alloys and steel are susceptible to corrosion in a salty environment, so regular lubrication and washing are critical for extending the service life.
Where can I find spare parts for Kamisu?
Because Kamisu motors are often built on proven solutions (similar to Tohatsu or Suzuki older models), many consumables (candles, glands, gaskets) are standardized. However, for complex components (carburetor, CDI), it is better to look for original parts from official dealers or specialized water appliance stores.