Motoblocks Centaur MB 2091b. Review, characteristics, reviews

Motoblocks Centaur MB 2091b. Review, characteristics, reviews of the owners

Recommend: 100%



Motoblock Centaurus MB 2091b – universal, sel f-clad devices for the execution of all agricultural work – plowing, cultivating, plants and ditches from different cultures, weeds, mowing from grass, hilling.

Motoblock Centaur MB 2091b

In addition, the motorcycle block with many other auxiliary devices becomes a complete household assistant – snow cleaning, irrigation of plants, rooms of the territory and the rescue locations.

The Centaur 2091b is equipped with a powerful petrol engine DB177E 9 HP. With the air cooling, the start is from an electric starter that is operated by the battery. Developed for processing points with a large and medium area.

Estimated costs of the Centaur MB 2091b on the market – 33.4 – 35.2,000 rubles.

Centaur MB 2091b

Technical characteristics

engine Single cylinder 4-stroke
Maximum performance, L.S./KW/Q. Min 9/6.67
The maximum speed, crankshaft, approximately. Minimum. 3600
Type of fuel petrol
Starting system Electric starter/Manual Start
Engine cooling system Air cooling of the forced type
Motor operating volume, cm³ 270
Fuel consumption (maximum), l/h 2,5
Fuel tank capacity, L 6
transmission Gearbox
Drive unit Through a mult i-disc pair
Type of liability Mult i-Disc coupling in the oil bathroom
Number of programs, back and forth 2/1
Cultivation width, mm 874-1136-1406
The depth of cultivation, mm 150-300
Motoboglok dimensions (D/SH/C), mm 1030/501/804
Equipped mass, kg 145.8

Features of the Walk behavior tractor

  • The gearbox has 2 front speeds and 1 reversal, which means that the use of machine output is rationally used depending on the type of work carried out.
  • The weakened passive cannons are attached to the gear selection wave with a hitch in the tail of a walking tractor, active devices.
  • Thanks to an adjustable floor and an adjustable floor, a fixed area of ​​the floor cultivation is possible: 870/1136/1406 mm.
  • Thanks to the dry coupling with several disks couplings, the smoothness of walking behavior is ensured without jerking. The high gear without circuits and belt concentrates on high loads when processing complex soils.
  • Motobo block control handles are very ergonomic-comfortable adaptation in different levels, which is when working in a limited space, near obstacles or simply so comfortable that the operator does not move along the newly processed soil.
  • Thanks to a special oil air filter, the lifespan of the machine is significantly increased.
  • Economic fuel consumption, reduced noise and vibration level.
  • A wal k-A S-D -Boden cutter with large crop protection discs (280 mm), large pneumatic bikes, a number of tools and operating instructions are equipped.
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Centaur MB 2090b

There is a version of the MB 2090 B without an electric starter, which is structurally similar to the Mot Centaur MB 2091b, in the line of petrol engine in the centaur.

Possible malfunctions

As with any technique, on a walk tractor sooner or later there may be various shortcomings, malfunctions in work. And then a logical problem of repair arises before the owners: you yourself or on duty? It’s difficult to answer unequivocally, of course, it all depends on the characteristics of the collapse.

In order for this problem to appear as later as possible, rational loads on equipment when working with hinged units and timely prevention are required.

The most important nodes are the engine and transmission and require minimal maintenance during operation. Replacing oil and checking its level, cleaning the filter element of the air filter, regular preventive examinations is enough to avoid frequent malfunctions in the future.

In order to avoid engine overheating, it is necessary to exclude the operation of the walkin g-behaviou r-tractor at idle. For air motors, this is most relevant.

Initially, after purchasing the Centaur MB 2091b, the engine runs correctly according to the operating instructions.

Let’s look at the most common malfunctions and ways to eliminate them.

  1. The gearbox is very hot during work. The main causes are friction bearings, lack of transmission oil or its poor quality. It is necessary to replace oil or bearings.
  2. Walk behavior tractor does not work smoothly. Check the condition of the profile on wheels, most likely it has been deleted.
  3. Vibration while working. Possibly an improper connection of the hitch or not fully fixated.
  4. The engine does not start well. Conduct a visual inspection for damage, check for gasoline in the gas tank and supply of fuel throughout the line. Check the ignition system for spark, evaluate the carburetor and try adjusting the fuel mixture.
  5. The carburetor does not work. This part is responsible for the preparation and delivery of fuel mixture. Check the quality of fuel, disassemble and rinse the carburetor with a soft cloth dampened in gasoline to remove the resulting soil and slag. Then dry thoroughly using a compressor with air and a dry cloth.
  6. oil flows. Possible: wear or improper installation of oil seals on bearings, wear of the liner, cover or input into the air valve is not pulled to the end. Check the details and clean them.
  7. Motoblock “leads” during operation. It is necessary to tighten the adjusting screw.
  8. skip clutch. Weaken it, if it doesn’t work, the reason may be in the flywheel. This is a device that transmits rotational torque from the starter to the crankshaft. Wear of flywheel crown teeth is possible. Repair and replacement of parts are only done in workshops.
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On the forums, the quality of the assembly of the centaur’s centoblocks and their high performance is noted.

Leonid, Solnechnogorsk:

A suitable model for the middle position. Of course, if there is a lot of land, then it is better to take a heavy engine with water cooling. MB Centaur 2091b likes that it has an electric starter although the petrol engine is believed to start as well but not fail in winter. The assembly is good.

Engine block Centaurus MB 2091b. Review of modifications, features, reviews

Motoblock Centaurus MB 2091b-semi-professional powerful self-propelled agricultural technology for processing medium and large land plots (within 2 hectares). The manufacturer of the MB 2091B engine note is the famous Chinese brand “Centaur”, which in a short period of existence conquered the European markets.

Motoblock Centaur 2091b

The functionality of this technique is enhanced by active and passive fasteners in the range developed by the manufacturer. The presence of a PTO shaft allows you to attach active hinges to the walk-behind tractor, while passive hinges cling to it with a universal hitch, which is also included.

The cost of a self-propelled motorized device varies from 14.5 to 18.5 thousand hryvnia (7-9 thousand rubles).

The center of gravity is specially lowered, thanks to which the unit has gained stability. Unlocking the wheel differential allowed various complex maneuvers and sharp turns to be performed. The adjustable steering wheel provided the driver with the necessary comfort when working with the two-wheel tractor.

Overview of modifications

The Centaur brand has released the following modifications of this device:

  • Centaur MB 2091B
  • Centaur 2091B-3

What are the similarities and differences?

Centaur MB 2091B

This model is equipped with a powerful DB177E petrol power plant with a capacity of 9 hp. The mass of the walk-behind tractor is 150 kg. The engine is started in two ways: by the kick starter and by the electric starter that comes with the battery.

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Motoblock Centaur MB 2091b

Transmission mechanical with two forward gears and reverse gear. The blades are adjustable folding, the working width varies from 87.6 cm to 150 cm, while you can adjust the working depth from 15 to 30 cm. In addition to the rotators, the walk-behind tractor kit includes a share, crop protection discs and large transport wheels with corner guards . There is a PTO.

type of engine DB177E
Horsepower 9,0
Starting system Electric start/manual
Type of liability multi disk
cylinder volume 270cc
cooling Air
The weight 150kg
cutter diameter 350mm
type of fuel petrol
fuel tank capacity 6.0L
fuel consumption 1.8 l/h
number of gears 2 forward / 1 back
mounting width 876/1139/1530mm
mounting depth 300mm
Dimensions (LxWxH) 1030x501x804 cm

Centaur MB 2091B-3

This walk-behind tractor has a reinforced frame and already weighs 158 kg. The DB 177F petrol power plant delivers a productive output of 9 hp.

Motoblock Centaur MB 2091b-3

Forced air cooling style. Engine starting via an inertia starter duplicated by an electric starter (supplied with battery). Completeness is as follows: three-position cutter (cutting width from 88 cm to 140 cm), plant protection discs, share. Transmission – mechanics, 2 + 1st PTO under the key.

Horsepower 9,0
Starting system Electric start/manual
Type of liability multi disk
cylinder volume 270cc
cooling Air
The weight 158 kilos
type of fuel petrol
fuel tank capacity 6.0L
fuel consumption 0.6 l/h
number of gears 2 forward / 1 back
mounting width 88/114/140 cm
mounting depth 30 cm
Dimensions (LxWxH) 160x70x100cm

Instructions for the walk behind tractor

When buying a Centaur MB 2091B walk behind tractor, the first step is to study the manual, which contains complete information about the motorized device:

  • Motoblock device.
  • Assembly Instructions.
  • Safety precautions when working with a walk behind tractor.
  • performance characteristics.
  • First start guide.
  • Retracting Motoblock “Centaur”.
  • maintenance steps.
  • problems.

The safety section describes the operation and maintenance of the Centaur 2091B walk behind tractor considering the following risks:

  • Use of combustible fuel gasoline AI-92 (correct filling, safe operation);
  • Working with combustible oils (filling, replacement);
  • Correct assembly of the cutting devices and safe handling of them (assembly, cleaning, disassembly, etc.);
  • High voltage cable connection and disconnection requirements, etc.
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First run and enema

The guide for the first start will teach the inexperienced operator of the hand-led Centaur tractor how he starts the power plant correctly and safely. The preparation for the start should consist of the following mandatory elements:

  • Pour in the oil.
  • Fill the fuel tank with hig h-quality petrol.
  • Check tire pressure.
  • Make sure that all fastening elements are tightened.

Immediately after the start, the on e-axle tractor MB 2091b must be retracted properly so that all moving parts of the engine and gears get used to each other.

The burning process takes about 10 hours and begins with the war m-up of the engine.

The device is tested practically without load at each speed, after which the power is gradually increased and brought to 3/4 of the engine output. At the end of the entrance, the used oil is inevitably drained off and freshness is refreshed.


The maintenance includes several phases that are described in detail in the instructions. We concentrate on the daily actions that every owner of the han d-led tractor Centaur MB 2091b must be carried out. These measures include two phases: “before” the start of work and “after” their conclusion.

Limit the level of oil and fuel

  • Control of the level of work fluids (petrol, oil);
  • Inspection of the reliability of fastening elements;
  • Check tire pressure.
  • thorough cleaning of the han d-led tractor;
  • Wash and dry;
  • Lubrication of the unit with special oils.

Main disorders and opportunities for their elimination

Each instruction contains a table with a list of errors and its removal. Let us list some of them.

Motor does not start:

  • The gasoline has dropped out;
  • Filled with inferior petrol;
  • Problems with spark plugs;
  • Hig h-voltage cable separated;
  • The magnetians with the flywheel leaves;
  • The filter must be cleaned or replaced;
  • The fuel supply system is blocked.
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Wheels (cutting works) stopped and do not turn:

  • Screws dissolved;
  • Loose clutch rope
  • Stones, lumps of earth fell into the milling;
  • Beats are loose or torn.
  • Lubricating;
  • Filled with inferior oil;
  • Storage problems;
  • worn gears.

Video review

Overview of the han d-led Tractor Centaur MB 2091b

Owner reviews

Ivan, 36 years old:

“The car is very necessary, inexpensive to maintain. In connection with the attachment, I have simplified life considerably – I do the necessary work in a few hours instead of in several days. Another plus is the low price. There were no serious failures during the tw o-year operation.

Igor, 28 years old:

“My Centaur MB 2091b is already in the fourth year. During this time I tested it in different situations. It even needs virgin soil (in 2-3 approaches), comfortable control and stability enabled me to edit the country under a slope (of course via the descent). Of course, the old man fails regularly, but he can be repaired. Still no trace of rust. After a downtime, it works well, but of course not on the first attempt, as the manufacturer promises. ”

Oleg, 32 years old:

“I bought this model last year, the han d-led tractor worked perfectly, all work for planting, growing and harvesting potatoes were carried out with its help. The machine is necessary, powerful – an excellent assistant from the gardener.

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