The Russian market of small boats has been successfully competing with foreign counterparts for many years, offering affordable and reliable solutions for fishing and recreation on the water. tarpanThe PVC, which has become a real bestseller for owners of PVC boats and small metal boats, has made it a popular choice among owners who value practicality.
This power unit was developed taking into account the specific operating conditions on domestic water bodies, where not only power is important, but also the ability of the engine to withstand overloads. Tharpan's engine. Those who are looking for a middle ground between the price of Chinese counterparts and the value of European brands are often chosen, and in this article we will examine all the nuances, from technical features to service intricacies.
Mastering this technique requires understanding the principles of two-stroke engines and compliance with the rules of running, which directly affects the durability of the device. We will look at typical faults and methods of their elimination, so that your navigation always goes without unforeseen stops. transmission The ignition system guarantees stable traction for many seasons.
Technical specifications and model range
The basis of the model range are engines with a capacity of 5 and 8 horsepower, which is the optimal indicator for light inflatable vessels. carburetor The ignition system is as simple as possible for ease of maintenance in the field, all models are equipped with a manual starter and have forced water cooling, which allows them to work in intensive mode without the risk of overheating.
An important feature is the possibility of installation electric starter The engine weight varies depending on the modification, but on average it is about 20-25 kilograms, which makes it quite comfortable for one person to transport. gearbox It is made of durable alloys resistant to corrosion in salt water.
⚠️ Note: When choosing a model, be sure to consider the load capacity of your boat, as excessive power can lead to a violation of the balance of the vessel on the water.
To understand the differences between popular versions, you should consult the comparison table, which gives you the key parameters, which will help you decide on your choice if you are faced with the dilemma of buying a more powerful or lighter version.
| Parameter | Tarpan 5 hp. | Tarpan 8 hp. | Tarpan 9.8 hp. |
|---|---|---|---|
| Workload | 98 cubic centimetres | 169 cubic centimetres | 169 cubic centimetres |
| Max. Turnover. | 4500-5500 rpm | 4500-5500 rpm | 5000-6000 rpm |
| Ignition system | CDI (electronic) | CDI (electronic) | CDI (electronic) |
| Weight (no fuel) | 20 kg | 22.5 kg | 22.5 kg |
Proper running of the new engine
The break-in procedure is a critical step that determines the life of the piston group and the life of the entire unit, and many beginners neglect this step, starting the engine at full speed, which leads to cylinder bullying and rapid failure. break-in It should be in a gentle mode, so that the parts are worn to each other without the formation of metal shavings.
The first hours of work are recommended to be carried out on water, since the work "on dry" or in a barrel does not give a full load on the water. transmission It doesn't allow you to estimate the actual heating temperature, so start by idling for 10 to 15 minutes, then gradually increase the thrust to less than 50 percent of the maximum power, and only after you've developed a few fuel tanks, you can go into full operation.
☑️ Checklist of proper breaking in
Particular attention should be paid to the quality of the fuel mixture, which during the break-in period should be slightly richer in oil than indicated in the instructions for standard operation, this will provide additional lubrication of rubbing surfaces that do not yet have perfect geometry. Ignition candle after the first hours of work should have a brick-brown coating, which indicates the correct mixture.
Device of the ignition and carburetion system
The heart of any two-stroke engine is a fuel supply and spark system that must work in perfect synchronization. CDIThe carburetor is responsible for preparing the combustible mixture, and its correct setting directly affects the idling chore and stability.
If there are problems with the start or "failures" of gas, first of all, you should check the state of the gas. candle The fuel water or the air filter clogging often causes instability, which can be easily eliminated by preventive cleaning, and the mixture is adjusted by screws located on the carburetor body and requires carefulness.
If the engine starts to stall when the throttle is opened abruptly, this is a sure sign of a mixture too poor, which is dangerous for the piston group. Regularly checking the tightness of the air suction will help to avoid impoverishment of the mixture.
Typical malfunctions and methods of their elimination
Even the most reliable technique, such as tarpanIt can require repairs during long-term use, and most often owners experience start problems, power loss or overheating, often caused by a simple lack of compliance, and knowing the underlying symptoms allows them to quickly diagnose the problem and fix it on their own.
If the engine doesn't start, the malfunction algorithm must be consistent: checking for a spark, checking for fuel supply and checking for compression. magneto Or a wire break, and fuel problems are often solved by blowing out the system, and overheating is usually associated with foreign objects getting on the water intake or wear of the impeller pump.
- 🔧 The engine stalls on idles: check the adjustment of the screw quality of the mixture and the purity of the jicler idle.
- 🔧 Vibration at high revs: inspect the propeller for chips and check the balance of the lower unit.
- 🔧 Smoke exhaust: increased proportion of oil in the mixture or low quality oil.
- 🔧 Knocking at the bottom: wear of gears gearbox Or sand hitting bearings.
⚠️ Warning: If there is a foreign knock or grind immediately shut off the engine, as further work can lead to the destruction of the nodes.
To replace the impeller water pump, which is an expendable material, you need to remove the lower part of the lower unit. This procedure requires care when installing the osteoils, as their skew will lead to water getting on the water. crankcase Always use original remixes or quality analogues to ensure tightness.
Selection of oils and preparation of fuel mixture
The quality of the two-stroke engine depends on the properties of the oil used, which burns with the fuel. TC-W3The use of automotive oils is strictly prohibited, as they form a deposit and coke exhaust channels.
The mixing ratio is usually 1:50 for new oils and 1:40 for past oils or when working in harsh conditions. candle It's better to mix the components in a separate canister, and carefully shake the mixture before pouring into the tank.
It is not recommended to store the finished fuel mixture for more than one month, as it loses its properties and can be delaminated. Gasoline should be used fresh, with an octane number not lower than AI-92, to avoid detonation. Fuel stabilizer You can add if you plan to keep a boat with a full tank for a long time.
Conservation and storage in the off-season
The proper preparation for the winter season is the guarantee that the Tarpan outboard motor will start the first time in the spring, and the main enemy during this period is corrosion and moisture residue inside the cooling system, which, when frozen, can split the block. pump And blow the system with compressed air.
The engine should be preserved by pouring a small amount of special conservation oil into the cylinder and making a few turns of the crankshaft, which will create a protective film on the walls of the cylinder and the piston, preventing rust from appearing during downtime. Fuel tank It is better to store it separately from the motor, completely emptying the main line.
- ⚓ Lubricate all movable connections and cables with lithium lubrication.
- ⚓ Treat anticord metal surfaces of the daydvut and bracket of the mounting.
- ⚓ Remove the candle, drop into the cylinder 5-10 ml of oil and slowly turn the crankshaft.
- ⚓ Keep the motor upright in a dry room.
Remember to check the condition of the package every couple of months and, if necessary, ventilate the cover to avoid condensation. If the engine is stored outside, make sure that the exhaust hole is closed from snow and rain. unit for years to come.
Frequently Asked Questions (FAQ)
Which gasoline is best used for a Tarpan engine?
It is recommended to use unleaded gasoline with an octane number AI-92. The use of gasoline with a higher octane number (AI-95) is allowed, but does not provide benefits, and fuel with an octane number below 90 can cause detonation and damage the piston group.
How often should you change the oil in the gearbox?
The gearbox oil is recommended to be changed once a season or every 100 hours of operation. When the new engine is first serviced, it is better to replace it after the first 10 hours of operation to remove the products of the gear grinding.
Can I use the Tarpan motor in salt water?
Yes, the motor can be operated in salt water, but after each exit, the cooling system must be thoroughly washed with fresh water, which will prevent corrosion of the internal channels and impeller pumps, which suffer from salt exposure.
Why is the engine smoking at full capacity?
Heavy smoke can indicate too rich oil mixture, use of oil of poor quality or improper adjustment of the carburetor, and smoke is characteristic of the period of active running of new engines.
Where can I find spare parts for the Tarpan outboard motor?
Parts are widely available in specialized water shops and online marketplaces, thanks to the model’s popularity, and many parts are unified with other Chinese engines of similar power, making it easier to find components.