Engine RMZ 550 technical characteristics

Paramotor RMZ - 550 is one of the most powerful paramotors.

• It has a titanium frame and guard
• equipped with RMZ-550 engine (analogous to ROTAX 502)
• its design allows it to be reconfigured for solo or tandem flights.
• The thrust developed by more than 100 kg makes it possible not only to take off confidently, but also to actively maneuver with a weight of up to 300 kg.
• The engine is equipped with manual and electric starters.
• The battery is recharged from the generator.

The RMZ-550 piston engine is a gasoline, two-stroke, two-cylinder, in-line cylinder, with an air cooling system, with an electronic ignition system.

Equipped with a resonant type exhaust system.

Technical data

*Engine weight with resonator and muffler. **Fuel consumption during horizontal flight.

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Weaknesses and shortcomings of the RMZ 550 engine

The RMZ 550 power unit is produced by RM Detail LLC, a subsidiary of Russian Mechanics JSC. This power unit consists of a two-stroke engine and a gearbox (variator). Designed to equip domestic Taiga snowmobiles produced by Russian Mechanics JSC.

The RMZ 550 two-stroke engine used on domestically produced snowmobiles under the Taiga brand combines high reliability and ease of repair. During major repairs, cylinders can be bored to the nearest repair dimensions, and commercially available parts and ass. CPG and ShPG units according to groups of repair sizes make repairs cheaper. I will provide information about the most possible weak points and shortcomings of the motor that one encounters when operating Taiga snowmobiles.

How to adjust the carburetor

The manufacturer and experts recommend adjusting the carburetors after the snowmobile has been run-in (300 kilometers). Here the owner has a choice - send it to a service center or make the adjustment himself. By following our instructions, even a beginner can handle the setup.

1. We check the opening of the carburetor throttles for synchronism; to do this, remove the intake noise muffler, take a mirror measuring 140 by 40 millimeters and look into the carburetor diffusers while smoothly squeezing the gas lever. If the throttles do not move synchronously, you should use the technical documentation for setting up for adjustment.
2. We look to see if there is any play on the sheath of the fuel corrector drive cables “must be in the closed position.”
3. Let's look at the position of the carburetor metering needle locks. According to the manufacturer's recommendations: the needle locks should be in the middle third groove.
4. We check the carburetor dosage details: GTZ 230 (main fuel jet);
5. ZHKH 55 (idle jet). We recommend replacing the idle jets with ZHKh 40, you can take them from the VM-34-560 carburetor.

For more accurate readings you will need:

• Fill the snowmobile's gas tank full and record the initial odometer data.
• Carry out a test run, following the odometer readings, and calculate the distance traveled (S, km).
• Add gasoline from a measuring canister to the gas tank, calculate the amount of fuel actually consumed (V, l).
• Using the formula GT = V/S•100 (liters/100 km), we calculate the amount of fuel consumption of a snowmobile.

Recommendatory nature: since the Varyag 550 has an RMZ-550 engine with a “KOSO” exhaust gas temperature sensor included in the package, it is worth checking the temperature of the engine at maximum speed; the temperature of the exhaust gases in the cylindrical part of the resonator can read 730-750 degrees Celsius . If the given permissible temperature is increased, then we change the speed (let off the gas).

Characteristics of the RMZ 550 engine

Weaknesses of the RMZ 550 engine

The pistons burn out. This problem is relevant for engine models produced before May 2013. The reason is a manufacturing defect: a deviation of the ignition timing by 3-5 degrees in the Ducati ignition system, which contributes to an increase in temperature during the exhaust stroke. This defect did not bypass the RMZ motors: 250; 551, which have the same ignition system. To prevent piston burnout and eliminate the defect, it is necessary to correctly adjust the ignition timing.

Ignition coil. If there are problems with the spark plugs, they often fail. A spare coil must be included in the transported spare parts.

Spark plug. If the spark plugs are faulty (carbon deposits, large gaps), backfires occur when the engine is running, and the internal combustion engine does not develop maximum power and maximum speed. To eliminate the defect, it is necessary to inspect the spark plugs for the presence of carbon deposits, remove carbon deposits if present, or replace the spark plugs. In addition, it is necessary to check the gap between the electrodes and bring it into compliance with 0.75 ± 0.05 mm.

Ignition. The ignition must be set very precisely. With early ignition, as with faulty spark plugs, backfire occurs during operation.

Leaking gaskets. Protrusions and oil leaks from under the oil pan gasket should not be ignored. If there are oily spots on the engine (under it), it is necessary to take measures to replace faulty parts. For uninterrupted operation, the engine must be periodically pressurized under a pressure of 0.35-040 kgf/cm² for 3 minutes, and the pressure should not drop for 3-5 minutes, since leaks in the internal combustion engine cannot always be determined by visible signs. If this is not done, then at one point the oil may leak out, and if there is no oil, the internal combustion engine will inevitably fail.

Carburetors. They require fine tuning for synchronous operation in all engine operating modes. Problems common to all carburetors: clogged jets, fuel leakage.

Fuel pump. If it fails, the operation of the internal combustion engine becomes impossible. To avoid problems during the trip, you should have a spare pump with you.

Variable speed drive. Requires periodic adjustment.

Belt variator. It is necessary to check the tension and condition of the belt daily. If the belt wears 3 mm in width, it needs to be replaced. Otherwise, the engine will not be able to develop maximum speed and power.

Fan belt. Failure to adjust the tension and wear of the belt leads to slippage and deterioration of the fan operation, and at the same time the engine overheats.

The rubber cushions (shock absorbers) under the engine are torn. The reason is poor quality tires.

Disadvantages of the RMZ 550 engine

• Poor quality installation of spark plugs on armored ignition wires during assembly in production. A simple auditory defect causes the destruction of the CPG. The problem was identified on snowmobiles manufactured before May 1, 2013;
• Piston jamming. This happens when the engine speed is rapidly increased when the engine is not warmed up. Cold cylinders, due to their larger volume and mass, expand more slowly when the engine starts running than pistons;
• Huge fuel consumption. On average from 25 to 27 liters per 100 km;
• Uneconomical to operate;
• Low resource. The main disadvantage of all two-stroke internal combustion engines, especially air-cooled ones, is the low service life of the engine before major repairs. For RMZ 550, the resource is within the range of 3,000 - 5,000 km.
• Prone to overheating due to design flaws, which is the main criterion for the problem of low resource reserve.

PS Dear owners of Taiga snowmobiles: Varyag 550 V SE, V, Patrul SWT! You can add your opinions on internal combustion engines and reviews through the comment form.

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Snowmobile Varyag 550: cases, price, taiga and its technical characteristics

A snow surface is far from being the best surface for cars, so in snowy areas it is necessary to use other modes of transport that allow you to successfully move on such a surface. After all, walking in the snow is also extremely inconvenient and slow.

What are snowmobiles for?

So, if it weren't for snowmobiles, communication in snowy areas would be seriously hampered indeed.

A snowmobile is used not only for moving from one point to another, but also for hunting and just for fun.

After all, snowmobiles allow you to move at really high speeds and, at the same time, not lose good controllability of the unit. This is precisely the advantage of a snowmobile, which no other type of equipment has.

This is precisely the reason for the high popularity of such transport in snowy areas. Currently very popular snowmobiles are Yamaha, Ermak, Viking 540, Dingo 150, BRP, as well as new models from Yamaha for 2021.

For more information about snowmobiles, watch the video:

About the manufacturer

One of the most reputable manufacturers of snowmobiles is domestic. This company has been producing equipment for more than 40 years, which allows it to use not only the latest production technologies, but also rich experience and the specifics of use on our land.

Russian Mechanics Company

In addition, snowmobiles from Russian Mechanics were involved in the longest snow expedition in the country, so you can absolutely trust such equipment without fear that the unit will let you down at an important moment.

The equipment from this manufacturer has truly Russian durability, so breakdowns occur extremely rarely.

The company is really popular, so purchasing a snowmobile from this company would be an excellent decision.

Cost of a Russian snowmobile

"Russian Mechanics" produces a fairly large number of all kinds of snowmobiles. One of the most popular lines is the Varyag , which offers truly reliable, high-quality and functional units.

Varyag snowmobiles are ideal for traveling on snow and ice, and harsh climatic conditions do not in any way affect the performance of the equipment.

The most popular model from this series is the Varyag 550.

This unit is a more affordable version of the 550V model, which, at the same time, contains the most important features and excellent technical characteristics.

This particular Varyag 550 model can be called the most optimal in terms of price-quality ratio, and you can purchase similar equipment for only 5,000 USD.

Such a price, if we take into account the capabilities of the snowmobile, is completely incomparable with foreign equipment, which is practically in no way superior to the Taiga Varyag 550, but costs at least 1.5 times more. So purchasing this unit will be an excellent decision not only technically, but also financially.

Indicators

Technical characteristics of the Taiga Varyag 550 V are as follows:

• RMZ-550 2-stroke engine with a carburetor, which provides the snowmobile with 50 hp;

• 2 cylinders;
• air type cooling;
• the transmission is traditional for such vehicles and is equipped with neutral, high and low gears, as well as reverse gear;
• electric start;
• telescopic front suspension 150 mm, which can be adjusted;

• 385 mm torsion bar rear suspension, which allows you to confidently overcome obstacles;

• the caterpillar here is quite wide, which makes it possible to increase traction with the snow and move even through difficult areas;

• dimensions 2980±60 x 1060±30 x 1310±45 can be called quite compact, which allows convenient maneuvering even in limited space;
• the weight of this snowmobile is 280 kg, which means that this unit will be easy to transport in the luggage compartment of a car;
• The fuel tank capacity is 40 liters , which allows you to provide the snowmobile with gasoline even for a really long trip.

Features of this model

But not only good technical characteristics became the reason for the popularity of this unit.

This Taiga 550 snowmobile can be used for a variety of tasks: driving, transporting goods, and also riding with a passenger.

Thanks to a clever solution, the seat can be transformed from a place for a passenger into additional space for carrying cargo.

And the rear suspension is rigid enough to allow even massive objects to be transported.

The Minsk Automobile Plant MAZ 7907 dump truck fulfilled N. S. Khrushchev’s cherished dream of catching up and overtaking the hated America.

Here is all the information on how to make a trailer for a walk-behind tractor with your own hands and so that it serves you for a long time.

Properly selected gearbox oil for a walk-behind tractor is the key to its successful operation. After all, the walk-behind tractor is your indispensable assistant in the household.

At the same time, your companion will also feel comfortable thanks to the heated backrest and handles to prevent his hands from freezing in cold weather. By the way, the backrest can be removed and placed in the driver’s seat.

The snowmobile has a truly balanced design, placing the center of gravity at the optimal height.

Thus, the controllability of this unit is excellent, and there is practically no danger of overturning. You can safely ride it on both hard snow and ice.

We can confidently say that for the money that you will pay for such a unit, it will become a truly successful investment, in terms of the level of costs and functionality, and the capabilities of the snowmobile.

To make transporting small loads as convenient as possible, there are special containers called trunks .

They are installed in the back of the snowmobile, which allows you to put any item in them and go where you need to go. The panniers fit perfectly into the design of the Taiga Varyag 550 snowmobile.

Of course, this addition will be a great solution if you like to go hunting, shopping, or just like having important tools always at hand.

Cases can have different volumes, which allows you to choose exactly the addition that will be optimal for your needs.

Engine RMZ - 500 avia

The domestic 2-cylinder engine RMZ 500 is an analogue, or rather a complete copy of the “authoritative” ROTAX 503.

With the domestic quality of “reproduction” I lost 2 hp of power, but otherwise it was quite affordable on a budget

and a very reliable engine. RMZ 550 is an attempt (increased displacement slightly) to gain lost power

when copying ROTAX. Otherwise, they are no different from 500 thousand.

Technical characteristics of RMZ - 500

Everything you see on our website can be bought: paragliders, hang gliders, paramotors, paragliders and other UAVs, as well as radio communications, navigation, etc., call and write to [email protected] Skype: amd7373. We send equipment to the regions by postal or transport company. It is also possible to rent paragliding and hang gliding equipment on our flights.

Attention! The structural elements used in the aircraft we produce cannot be used in aircraft of other manufacturers without appropriate adaptation modifications! Since each manufacturer has its own standards.

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Snowmobile Taiga Varyag 550

Taiga Varyag 550 is a high-performance utilitarian snowmobile made in Russia. The machine is the best among domestic utilitarian-type snowmobiles. This device uses the most advanced developments available to our engineers.

The developer of the machine is, which produces this snowmobile in the city of Rybinsk.

The main characteristic advantages of the model under consideration are good handling, low center of gravity, high load capacity, maintainability and proven technical solutions.

The model under consideration is distinguished by its high level of cross-country ability and practicality. Let's pay attention to the rich package, which already includes a two-level seat with a removable backrest. In addition, the driver and passenger are provided with heated grips. Including, there is a function for heating the gas trigger.

The hydraulic brake and towbar deserve special attention - these components are integral to the basic version of the Taiga Varyag 550 snowmobile. Thus, the towbar is very useful when transporting sleds with large and heavy loads.

The hydraulic brake, in turn, provides effective braking even when the car is fully loaded - along with two passengers (including the driver) and cargo.

The Taiga Varyag 550 snowmobile stands out for its excellent driving characteristics, which can be emphasized by high maneuverability and excellent traction thanks to the power reserve of the internal combustion engine.

The machine is designed to drive on any road surface, including rolled and smooth snow, as well as loose and deep snowdrifts. There will be no problems driving on icy roads.

As a result, the car is able to quickly and efficiently get to the designated place, overcoming any obstacles, which is a big plus in favor of cross-country ability.

It must be admitted that previous models of the Varyag family had significant problems with cross-country ability and high loads. Based on the above, these shortcomings were eliminated in the Taiga Varyag 550 snowmobile. The device is equipped with a powerful and compact engine designed for increased loads. In addition, thanks to this, the snowmobile has good acceleration potential, comparable to its closest foreign competitors.

Modifications

There are several different modifications of the snowmobile of the same name, which differ in purpose and set of capabilities.

• Model Varyag 550V. This machine is an improved version of the original snowmobile. Among the features of this device is an expanded configuration with additional options. In particular, this model has a two-carburetor Mikuni system, improved air cooling and a two-speed gearbox. In addition, there is also Ducati CDI electronic ignition from a foreign supplier. The technology is a programmable system that can be tuned to optimize powertrain performance at low or high loads.

• Taiga Varyag 550 limited. This snowmobile complies not only with basic standards, but also with advanced equipment elements typical of more expensive imported models. We are talking about a continuously variable transmission, which is a simplified analogue of a car CVT. The rated power of the power plant is 55 horsepower. The engine has a dual cylinder system, as in the previous version. There are changes in the design part, as well as the design of the dashboard. Overall, the 550 Limited is slightly better equipped than the 550V. The Limited modification entered mass production in October 2016.

Specifications

1. Snowmobile length – 2990 mm
2. Width/full height, mm – 1050/1380
3. Track length – 3937 mm
4. Track width/height – 500/22 mm
5. Track width between skis/track base – 900/508 mm
6. Weight – 280 kg
7. Engine – petrol, RMZ-550
8. Electric starter - yes
9. Rear shock absorber - monotube, hydropneumatic
10. Fuel tank volume – 40 liters
11. Basic gearbox - two-speed
12. Optional transmission – continuously variable, CVT
13. Speeds: down, forward, neutral, reverse
14. Control – hydraulically driven
15. Brake mechanism - mechanical, disc brakes
16. Front suspension – telescopic – with 105 mm travel
17. Rear suspension – slide, with a stroke of 190 mm
18. Ignition system – Ducati CDI (programmable)
19. Front headlight – halogen
20. Heated steering wheel and throttle trigger functions are standard.

Engine

The vehicle in question received the only power plant in the engine range, the RMZ-550, which has proven itself to be reliable and unpretentious over long runs. The unit is a two-cylinder, two-stroke design with a working volume of 0.5 liters. The basic version uses a single Mikuni carburetor system, and the optional version has two carburetors. The engine develops a power of 50 horsepower, which is an increase of 5 liters. With.

less than the forced version (Limited). Cooling is air type, starting type is electric starter, which can be replaced with a manual starter (if necessary). Thanks to the listed components, the engine has increased reliability; it starts confidently in cold and warm weather. Due to this, it can be argued that there is no need to change the RMZ-550 engine to a more modern one.