Choosing the first or next outboard motor is always a balance between the desire to save money and the fear of getting unreliable equipment. Chinese manufacturers have made a huge leap in quality over the past decade, and the brand has been a great driver of the engine. Parsun The market is awash with conflicting information: some fishermen swear that their "Chinese" walks without complaints for the seventh season, while others complain of breakdowns after the first break-in.
To understand this pile of myths and facts, we need to analyze the real-world experience of thousands of users. case-case The data, the use, the hidden build defects and the real life of the engine, will help you make an informed decision about the purchase.
Owners often argue about whether or not they are Parsun full-copy Yamaha Or it is an independent engineering development with elements of borrowing. Statistics of service centers show that up to 80% of warranty applications are due to improper running, not factory defects. This is an important nuance that is often overlooked by beginners who blame the technique for their own mistakes. Let's dive into the details so that your motor lasts long and enjoys traction.
General impression of operation and build quality
The first thing that catches your eye when you look at the motor is the visual similarity to Japanese ones. Cof plastic, the shape of the lower unit, even the arrangement of controls, often copy time-tested solutions. However, if you swipe your fingers through the joints and seams, you can notice differences. Parsun varies from batch to batch: in successful instances, the surfaces are smooth, in less successful ones there are small influxes of metal, which, however, rarely affect functionality.
Owners often note that the series of engines T (two-stroke) are assembled more neatly than four-stroke counterparts, due to less attachment and simpler construction. Many users write that after purchase, you need to "pull" all threaded connections, because factory vibration during test runs could weaken the fastener. This is normal for any budget engine, but it can not be ignored.
The ergonomics of the rummel and the ease of landing on the transom also elicit different emotions: some praise the gentleness of the gas hummel, others complain of the tight adjustment of the inclination angle of the lower unit (trim). CDI ignition system It is stable, ensuring a steady start even after winter storage, provided that conservation conditions are met, and in general, the assembly is rated as “working”, but requiring careful control by the owner during the first hours of operation.
Technical specifications and real power indicators
The declared power on the engine nameplate is often the subject of heated debate on forums. Owners argue that the real performance can differ from the data-sheet figures depending on the quality of the fuel and the configuration of the carburetor. Two-stroke models with a volume of 9.9 hp often manage to swell to 15 hp by removing the valve limiter, which is confirmed by an increase in the maximum speed of the boat by 3-5 km / h. However, such modernization requires the installation of the corresponding screw.
Fuel consumption is another critical parameter. Parsun The normal flow rate is 3-4 liters per hour at full gas for 9.9-horsepower models. The four-stroke versions are estimated to be about 20-30% more economical, but they are much heavier and more expensive to maintain. expense It depends on the load on the transom and the state of the screw.
The table below compares the claimed and (user-measured) specifications of popular models:
| Model | Type of engine | Declared power (hp) | Real consumption (L/hour) | Weight (kg) |
|---|---|---|---|---|
| Parsun F9.9BMS | two-stroke | 9.9 (15) | 3.2 - 3.8 | 36 |
| Parsun F6BMS | two-stroke | 6 | 1.8 - 2.2 | 24 |
| Parsun F15BMS | four-stroke | 15 | 2.5 - 3.0 | 48 |
| Parsun F5BMS | four-stroke | 5 | 1.1 - 1.4 | 27 |
It's worth noting that four-stroke engines are quieter at idle speeds, which is highly appreciated by fishing enthusiasts, and two-stroke engines are better at acceleration and maintenance in the field, and the choice between them is always a compromise between weight, noise and appetite.
For accurate adjustment of the carburetor, use a gas analyzer or candlestick method, since factory setting is often done under environmental standards, rather than under maximum performance.
Typical problems and childhood diseases of motors
No manufacturer is perfect, and Parsun Reviews reveal a number of recurring problems that owners face, most often with regard to the cooling system, and some of them have insufficient water pressure from the control hole, which may be due to clogging or failure of the impeller pump. Overheating The main enemy of any outboard motor, and ignoring the stream of water is dangerous.
The second most popular problem is the quality of fasteners and electrics, oxidizing contacts in the generator coil or weakening the carburetor mount bolts are frequent guests after 50 hours. NGK.
⚠️ Warning: If you find metal chips in a gearbox (on a drain plug magnet) during the break-in period, don't panic. Fine dust is normal. However, large pieces of metal require immediate service to defect the gears.
Another disease is the leaking of the shafts, the crankshaft salad can start to leak oil into the combustion chamber, which leads to increased smoke and soot on candles, and the lower unit salad can, in turn, let water into the gearbox, which can emulsify the oil and destroy the gears. Regular check of the oil in the gearbox (it must be transparent) is mandatory.
The secret to quiet work
Many owners reduce vibration and noise by installing additional rubber pads under the plastic casing and using anti-vibration pads for an outboard motor on the transom, which does not eliminate the cause, but makes operation more comfortable.
Expendables and features of maintenance
outboard motor maintenance Parsun It doesn't require unique tools, which is a big plus: a standard set of keys and screwdrivers will allow you to do 90% of the work yourself. For two-stroke engines, the quality of the fuel mixture is critical. It is recommended to use AI-95 gasoline and a quality two-stroke oil with a label. TC-W3The mixing ratio is usually 1:50 for new engines after break-in and 1:25-1:40 for the first 10 hours.
Four-stroke models require a change in engine oil in the crankcase. The first replacement is made after running (20 m / h), then every 100 m / h or once a season. Owners are advised not to save on oil and pour proven brands, because this depends on the resource of the crankshaft mechanism.
☑️ Seasonal engine maintenance
Winter storage requires proper preservation, the motor must be developed dry or add a fuel stabilizer to the tank, then turn off the engine on the closed fuel system. Corrosion The internal cavities of the carburetor are a common cause of problems with starting in the spring, and it is better to keep the engine upright in a dry room.
Comparison with competitors: Tohatsu, Yamaha and Hangkai
When it comes to buying, Parsun They're often compared to other "Chinese" and budget Japanese. Hangkai or Sea-ProParsun wins in the availability of parts and more predictable build quality. Hangkai It is often cheaper, but it is more difficult to find original parts in the regions, and the geometry of the lower unit may differ from the declared one.
Compared to Tohatsu (whose engines are often powered by Mercury boats) Parsun Japanese engines can walk 1,000+ hours without opening, while Chinese engines require more attention and perhaps a bulkhead to 500-600 hours, but the difference in price can be doubled, which for many becomes a decisive factor.
Owners who have moved from Yamaha on ParsunThe Chinese require more frequent adjustment of valve gaps (on 4-strokes) and more careful control of the mixture, but for its price it offers comparable traction and functionality. For amateur fishing 30-40 days a year, overpaying for the brand does not always make sense.
The main conclusion of the comparison: Parsun is a workhorse for those who are ready to follow the technique, while Yamaha/Tohatsu is chosen by those who want to forget about the engine and just drive.
Tips for running down to extend the resource
Running is the foundation of a long life for your motor. Many people ignore this stage, immediately giving full gas, which leads to bullies of the piston group. The process of running a two-stroke engine takes about 10 hours. The first 2 hours are recommended to run at speeds up to 3000 per minute (about 30-40% of gas), constantly changing the load.
The next 8 hours can be gradually increased load, briefly (no more than 2 minutes) to bring the engine to full gas, but for a long time running at 70-80% of the power. It is important not to let the engine work at idle speeds for long, to avoid nagaroprozavodiya on candles and in the muffler. Use a mixture with a slightly higher oil content (1:25) in the first tanks.
⚠️ Warning: Never run the motor on the suspension system in a water barrel longer than necessary for inspection. The lack of natural cooling by the incoming water stream and the operation of the screw can lead to local overheating and deformation of parts, even if water comes out of the pump.
For four-stroke engines, the procedure is similar, but oil level control is added. After the first 20 hours of operation, the oil must be drained to remove the products of the part grinding. It is the failure to run in mode that causes 90% of the early failures, which users mistakenly attribute to the poor quality of the brand.
FAQ: Frequently Asked Owner Questions
Where can I find spare parts for the Parsun motor?
Parts on. Parsun They're widely used in specialized boating stores and on large marketplaces, because the design of the motors is unified with the design of the motors. Tohatsu and Yamaha (for many models), often suitable original parts from Japanese counterparts, especially consumables such as oil oils, gaskets and candles.
Can you use the Parsun motor on seawater?
Use in seawater is possible, but requires a mandatory freshwater wash after each outlet. Aluminum alloys of the shell are subject to galvanic corrosion in a salty environment. It is recommended that additional zinc anode be installed and regular lubrication of external nodes.
Why does the engine stop at high speeds?
The most likely cause is a fuel failure (fuel filter is clogged, hose will swell, valve in the tank is faulty) or problems with the ignition system (coil failure at high revs). It is also worth checking the setting of the carburetor and the level of oil in the mixture.
Which screw is better to put for an inflatable boat?
For PVC inflatable boats up to 3.5 meters long with a 9.9 hp engine, a propeller with 8-9 inches increments is considered optimal. For heavier metal boats or boats longer than 4 meters, the step should be increased to 10-11 inches for better traction and sleeve.
Is it possible to increase the power of 9.9 to 15 hp on your own?
Technically, yes, by removing the throttle limiter and preferably replacing the screw with a faster one, but this removes the engine from the warranty and can lead to overheating if the cooling system fails to cope with the increased heat load, do so at your own risk.