Four-stroke outboard motor Yamaha 20 hp It is one of the most popular choices for small boat owners in Russia, combining Japanese build quality, cost-effectiveness and ease of maintenance, making it the perfect solution for both fishing and outdoor activities on the water, but before buying it, it is important to understand the nuances of everything from technical specifications to the specifics of paperwork and the choice of the seller.
In this article, we will discuss in detail where it is better to buy Yamaha engine 20 hp 4T (new and used) to look out for, how to avoid counterfeiting and overpayments, and practical operational tips, and you'll also find up-to-date prices, comparisons with peers, and answers to frequent customer questions.
Technical specifications Yamaha F20 and FMHS 20What you need to know before buying
Line of 20-strong engines Yamaha It is represented by two main models: F20 (classical version) and FMHS 20 (with a high degree of compression and system) Micro Computer IgnitionBoth run on AI-92 petrol, but have key differences that influence the choice.
Basic parameters:
- πΉ Type of enginefour-stroke, 2-cylinder, SOHC (single upper camshaft)
- πΉ Workload: 327 cm3 (F20) / 362 cm3 (FMHS 20)
- πΉ Max. Power.: 20 hp at 5500 rpm (F20) / 20 hp at 5000 rpm (FMHS 20)
- πΉ Launching system: Manual starter (electric starter option for FMHS 20)
- πΉ Transmission: forward/neutral/rear (switching on the tiller)
- πΉ Weight.: 51 kg (F20) / 53 kg (FMHS 20)
- πΉ Recommended screw: aluminum 3-blade (step 9β13 inches)
Critical nuance: engines of the FMHS 20 series are equipped with a system Oil AlertThis protects against serious breakdowns, but requires regular oil control (every 20-30 hours).
| Parameter | Yamaha F20 | Yamaha FMHS 20 |
|---|---|---|
| Type of power supply | carburetor | Microprocessor-ignition carburetor |
| Fuel consumption (L/h) | 5.2β6.5 | 4.8β6.0 |
| Max. speed (boat 3.5 m) | up to 35 km/h | up to 38 km/h |
| Producer's guarantee | 3 years | 3 years (5 years for some nodes) |
Please note: motors FMHS 20 They're better suited for long trips because of their reduced fuel consumption, but they're more expensive to repair because of the more sophisticated electronics. F20 It's the best choice.
Where to buy a new engine Yamaha 20bhp 4T: Official Dealers vs Online Sites
The price of a new one Yamaha engine 20 hp four-stroke in 2026 varies from 280,000 to 350,000 rubles Depending on the equipment and the region. Where is the best place to buy?
Official Yamaha dealers (for example, Yamaha Motor Rus, Mothball.ru., BoatShop):
- β 3-5 years warranty with possibility of extension
- β Service throughout Russia
- β Original parts and accessories
- β Prices are 10-15% higher than those of gray suppliers
Online venues (Avito, yula, Drom., Purchase ticket):
- β Prices are lower by 5-20% (but the risk of running into counterfeit or βgrayβ imports)
- β Possibility of bargaining and buying used motors in good condition
- β No warranty (or limited to 1 year)
- β Risk of buying a motor with a "twisted" watch or after an accident
β οΈ Attention: When buying from private sellers, be sure to check PTS of the engine (must be original, not copy) and check engine number with the documents. Motors without PTS can not be registered in the GIMS, and their operation is prohibited by law.
If you choose between a dealer and an online marketplace, focus on your budget and goals:
- πΉ For commercial use (boat rental, excursions) - only an official dealer.
- πΉ For personal use and savings, you can consider verified sellers on the Avito with a good reputation (rated above 4.8 and reviews over 2 years old).
Before buying a used motor, ask the seller to shoot a video of the launch "cold" and "hot." Pay attention to the color of the exhaust: blue smoke indicates wear of the piston group, and black indicates over-enriched mixture (problems with the carburetor).
How to distinguish the original engine Yamaha 20 hp forgery
Fake engines Yamaha (most often Chinese copies under brands) Hangzhou, Parsun They look like the original, but they're low-resource and unreliable, and here are the key signs of forgery:
Marking and serial numbers:
- π The original engine has the number knocked out.
graffitiIt's duplicated on a badge, and fakes often have blurred or mismatches. - π The original serial number begins with the letters
6C(for F20) or6H(for FMHS 20).
2. Quality of assembly and materials:
- π§ The original engines have chrome-plate (e.g., a rummel), whereas counterfeits have plastic or painted.
- π§ The gearbox cover on the original is made of aluminum alloy, on the fake - of thin metal with rough welding.
Documentation:
- π Complete with the original comes passport hologrammed Yamaha Counterfeiting is often supplied with photocopies or documentation in English without translation.
- π There's a box of the original. barcodeThis is available on the Yamaha website.
β οΈ Attention: If the seller refuses to provide photos of the serial number or documentation before the meeting, this is a reason to be wary, and avoid engines with "European" documents - they are difficult to register with the GIMS.
How to check the engine by serial number?
To verify the originality of the engine, send a serial number (for example, 6C12345678) to the official Yamaha dealer in Russia (info@yamaha-motor.ru) or check through the form on the website Yamaha Motor RUSThe answer will confirm the release date and the model, and the fakes usually fail this test or give you an error.
Comparison with analogues: Yamaha 20 hp vs Honda BF20, Suzuki DF20, Mercury F20
If you are not sure about the choice, compare Yamaha 20bhp 4T All engines have similar specifications, but differ in key parameters:
| Parameter | Yamaha F20/FMHS 20 | Honda BF20 | Suzuki DF20 | Mercury F20 |
|---|---|---|---|---|
| Type of engine | Carburetor/Carburetor + Microprocessor | Injector (EFI) | carburetor | carburetor |
| Fuel consumption (L/h) | 4.8β6.5 | 4.2β5.5 | 5.0β6.8 | 5.5β7.0 |
| Weight (kg) | 51β53 | 50 | 48 | 52 |
| Guarantee (years) | 3β5 | 5 | 3 | 3 |
| Average price (new), rub. | 280 000β350 000 | 320 000β380 000 | 260 000β310 000 | 270 000β330 000 |
Who is the Yamaha 20 HP fit for?
- π£ Fishers who appreciate reliability and ease of service.
- π€ Owners of long boats 3.0-4.2 meters (Optimal balance of power and weight).
- π° Those who seek price/quality ratio without overpayment for the injector (as in the case of Honda BF20).
Who better to look at analogs?
- π If it matters fuel consumption - Choose. Honda BF20 (The injector is more economical by 15-20%).
- π¨ If you need it. maximum speed on a light boat. Suzuki DF20 lighter by 3-5 kg and gives +2-3 km / h.
- π If it matters ease of repair β Mercury F20 It has a more developed network of services in the regions.
The Yamaha 20 hp is the best choice for those who want a reliable engine with minimal maintenance costs, and if the budget allows, injector analogues (such as Honda) will pay off by saving fuel during heavy operation.
Checklist before buying a used motor Yamaha 20bhp 4T
Buying a used motor is always a risk, but if you approach the process correctly, you can save up to 40% of the cost of a new one.
Documents: PTS, service book, check about the latest TO| External inspection: corrosion, dents, repair traces | Start "cold": warming up time, exhaust color | Test on water: smoothness, no vibration | Oil check: level and color (dark - required replacement) |Inspection of the gearbox: backlash, leaks, condition of the os->
1. Documents:
- π Check it out.
PTSDThe engine number must match the one on the transom. - π Ask for a service book: if the engine was serviced by an official dealer, this is a plus.
External examination:
- π¦ Pay attention to this. paintIf it is uneven, the engine could be after an accident or home repair.
- π¦ Check it out. rubber-piece (pipes, anthers): cracks indicate aging and rapid replacement.
3. Launch and operation:
- π The engine must start with 1-2 jerks If you need a lot of effort, you have problems with the carburetor or compression.
- π There should be no idle revs. rapture.
4. The water test:
- β΅ Check it out. gearshiftPunching or delay indicates wear of the clutch.
- β΅ The engine must not be fully throttled. sneeze This is a sign of a problem with the fuel system.
β οΈ Attention: If the seller refuses to test on water or starts the engine only on the "hot" - this is an excuse to refuse the deal. There is a risk that the engine does not develop full power or has hidden defects.
Registration of the motor in GIMS: step-by-step instructions
Any motor with a power from 10.88 hp including Yamaha 20 hp) is subject to mandatory registration with the State Inspectorate for small craft (SIMS), the procedure takes from 1 to 3 weeks and includes the following steps:
Preparation of documents:
- π Passport of the owner (original + copy).
- π
PTS of the engine(if new) orregistration(if I'm a b/w). - π Contract of sale (if the engine was purchased from the previous owner).
- π Receipt of payment of the state duty (2,000 RUB for registration).
2. Passing a technical inspection:
- π§ The motor must be installed on the boat (even if it is not registered).
- π§ Checked out. engine number documents and the absence of alterations.
3. Application to GIMS:
- π The application is filled in on the form (the sample can be downloaded on the GIMS website).
- π All documents and photos of the engine (side and back) are attached.
4. Obtaining a certificate:
- π In 10 to 14 days you will be given registration and motor-number (Applied to the transom).
In 2023, electronic registration was introduced through portalBut the first application still requires a personal visit to the inspection.
If you buy a motor in another region, you can temporarily register it at the place of purchase, and then re-register it at the place of residence, which will save time if your city has large queues at the GIMS.
Maintenance and tuning: how to prolong the life of the motor
Term of service Yamaha 20bhp 4T with proper care, it is 10-15 years or 2,000 to 3,000 motor-hoursHere are the key rules of service:
1. Oil change:
- π’ Change the oil every time. 50 hours of motorsport or once a season (if the motor is rarely used)
- π’ Recommended oil: Yamalube 4M (10W-30) or analogues (Motul Outboard Tech 4T).
2. Cleaning the carburetor:
- π§Ή Every one. 100 motor-hours wash the carburetor with a special cleaner (for example, LIQUI MOLY Vergaser-Reiniger).
- π§Ή If the engine "sneezes" or stalls on singles, most likely, chiclers are clogged.
3. Care for the gearbox:
- β Change the oil in the gearbox every time. 100 motor-hours (use) Yamalube Gear Oil).
- β Check the glands for leaks - their wear leads to water entering the gearbox.
4. Tuning and upgrades:
- π Replacement of the aluminum screw with steely (for example, Solas or Michigan Wheel) improves traction by 10-15%.
- π Installation hydro-lift (for example, Garelick) facilitates the control of the motor on the wave.
β οΈ Attention: Don't set it on. Yamaha 20 hp pitched 13 inches This will overload the engine and reduce the lifespan. 9-11 inches.
Frequent questions about the motor Yamaha 20bhp 4T
πΉ Can I use the engine on a PVC inflatable boat?
Yeah, Yamaha 20 hp Suitable for PVC boats with a length of 3.0 meters with a transom height 380β430 mmIt is important to choose the right screw: for light boats (up to 200 kg) the optimal step 9-10 inchesFor heavy passengers (with passengers) 11-12 inches.
πΉ What kind of gasoline to fill: AI-92 or AI-95?
The manufacturer recommends AI-92The use of AI-95 does not increase power, but can lead to heat-up It's because of the slower combustion of fuel, except for the motors. FMHS 20 with microprocessor ignition, which are adapted for both types of gasoline.
πΉ How much does it cost to an official dealer?
The cost of planned maintenance (oil replacement, filters, system inspection) in certified centers Yamaha form 3,500 to 5,000 rublesIndependent maintenance is cheaper (about 1,500 rubles), but deprives of warranty.
πΉ Can I convert the motor to an electric starter?
Yes, but only for the model. FMHS 20 - it has a pre-prepared electrical circuit. F20 You will need a complete replacement of the crane and the installation of additional components, which will cost you a lot. 20,000-25,000 rubles. and cancels the warranty.
πΉ What is the maximum speed on the boat 3.6 m?
On a boat long. 3.6 meters 2-3-passenger Yamaha 20 hp speed up 30β35 km/h (depending on the load and propeller) On a light boat (1 person) you can squeeze up to 40 km/hBut it's not safe because of the risk of a toss.