Domestic utilitarian ATV Stealth Cheetah 800

The Stealth 800 Cheetah ATV, whose owners’ reviews are far from rosy, is produced by a Russian company. This unit is designed as a vehicle for lovers of drive and extreme off-road. Highly qualified domestic designers worked on the design of a modern all-terrain vehicle. Almost eighty percent of the parts are produced by domestic factories. The two-cylinder power unit is also developed specifically for this model.

Advantages

It happens that when evaluating a technique, you have to make a fair amount of effort, trying to find at least some merits. This in no way applies to models produced by . There really are advantages, and there are many of them.

• Design. The manufacturer not only localized production within the country. His products have their own face. And although the quality of some parts of the case is still far from ideal, the buyer can accurately determine what kind of equipment is in front of him. Reviews from owners evaluating the Stealth 800 ATVs indicate that their appearance is attractive and the ergonomics are well thought out.
• Strength. The space frame design, developed by the company’s specialists, is capable of withstanding heavy loads. This is an important quality, taking into account the peculiarities of the operation of motor vehicles in Russia, and the increased weight of the ATV, which has increased to 370 kg, should be regarded as a completely justified price for additional strength.
• Thrust-to-weight ratio. Using the technological and design developments of Rotax, whose engines are successfully used all over the world, Velomotors engineers created their own engine. The two-cylinder V-shaped unit, with a working volume of 800 cubic cm, is adapted for operation in Russian realities. The liquid cooling system protects the power unit from overheating even when it is subjected to high loads for a long time. Power 67 hp. With. enough to provide the car with decent cross-country ability and dynamic characteristics that can be the envy of many competitors.
• Patency. To ensure this, the model was equipped with plug-in all-wheel drive and care was taken to ensure that the ground clearance was as much as 310 mm.
• A large number of different modifications. The Stealth 800 Cheetah ATV is offered to customers in seven versions. Moreover, the cars differ not only in color, but also in settings and equipment.

Initial check sequence

An initial performance check can be performed without dismantling the generator. To do this, set the multimeter switch to the “constant voltage 20V” mode. Next, connect the black probe to the negative terminal of the battery, the red one to the positive terminal. After this, you need to start the engine and let it reach a stable idle speed. Multimeter readings ranging from 13.5 to 14.5 Volts are considered normal.

If the multimeter shows a value less than 12.8 Volts, the charging process either does not occur at all, or the charging current is extremely small. The generator is operating in abnormal mode. When the voltage is more than 14.8 Volts, the battery is overcharged. This can lead to boiling of the electrolyte, an increase in acid concentration, and destruction of the battery plates.

To check the voltage at the generator output, you need to turn on the car lamp in the open circuit from terminal 30 on the generator (the point of contact with the thick wire leading to the positive terminal of the battery or starter).

Next, connect the multimeter in the “=20V” mode with the red probe to contact 30 of the generator, and the black probe to the stripped contact on the engine or body. Start the engine. The reading on the multimeter should not be more than 15.5 volts whenever the accelerator pedal is pressed. Otherwise, further operation of the generator is dangerous for the electrical equipment of the car.

When checking, you should evaluate the degree of tension of the generator belt. Using a simplified method, this can be done by pressing on the belt with your finger.

The amount of deflection should be within 0.5 - 1 centimeter. At the same time, check the degree of belt wear. To determine the reasons for abnormal operation of the generator and perform repair work, dismantling the generator is required.

Flaws

As for the shortcomings that owners mention when leaving reviews of the Stealth 800 Cheetah ATVs, among the most frequently mentioned are the following:

• Quality of workmanship and assembly. Most likely, such claims arise from those who previously operated equipment from companies that occupy leading positions in the motorcycle market. Of course, there are certain complaints, but against the backdrop of the shortcomings found in inexpensive models from China, they seem insignificant.
• The roughness and control problems for which the Stealth 800 Cheetah ATV is criticized by owner reviews. Indeed, it is often difficult for an inexperienced driver to cope with a heavy and powerful car. To a large extent, problems are solved by adjusting the suspension and almost disappear when the user gets used to the control features.
• Price. It is, of course, lower than that of similar models from popular brands. But for many Russian residents, prices for equipment at the top of the company’s model range turn out to be unaffordable.

Peculiarities

When downshifted, the quad can tow other equipment or climb hills with a steep slope. When developing the model, the designers provided the option of using it as a snow removal equipment. With a special blade installed, the unit is quite capable of clearing snow from a fairly large area. It is worth noting that the Stels ATV 800 GT ATV, reviews of which are not always clear, is characterized by economical fuel consumption compared to foreign analogues.

The case of the model in question is made of high-quality materials that are resistant to corrosion and temperature changes. Highly placed wiring, the variator and the air filter are well protected from flooding, as well as dirt and cobblestones. This design allows the vehicle to overcome significant water obstacles and wetlands.

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Yes, it seems that it is precisely for this reason that the Stels company organized a test of the ATVs already familiar to us, not on the cross-country track familiar to journalists, but in conditions as close as possible to combat conditions - on a truly winter (the temperature stayed below -20 ° C) hunting in Bryansk black forest. And the stealth “utilitarians” in this event were to act as workhorses, delivering hunters and equipment through the forest, and back all the same plus (at least in theory) prey.

At the gathering place, three models of quads were waiting for us: the long-wheelbase ATV 700D, the rollover ATV 800D and the side-by-side UTV 800H. I decided to start with the 700D, soberly reasoning that the long wheelbase and slower-revving engine would be a significant help when driving on slippery roads and overcoming powdery snow (looking ahead, I’ll say that it turned out to be so). In addition, this machine was equipped with two trunks, which immediately eliminated the issue of transporting not only a backpack and a camera, but also a supply of provisions just in case.

The column of “quads”, moving towards the forest, cheerfully flew along the rolled paths and paths, occasionally pleasing themselves and frightening those around them with skidding on turns. But as soon as we went deeper into the forest, the speed of movement dropped sharply: we were no longer up to demonstrating our brave prowess, our strength was spent on overcoming the snowy impassability.

This is where the 700D showed itself in all its glory. Where the drivers of the short-wheelbase 800s did their best, the 700 simply carried them. But the most difficult thing was for those sitting behind the wheel of the UTV - the track made by the “quads” turned out to be too big, so they actually had to drive on virgin soil. True, the only external manifestation of this was a slightly lower speed of movement.

At the site of the first stop, the organizers conducted a course for young fighters in handling smooth-bore weapons. But it was not possible to hold the attention of the “hunters” for long, even with the help of weapons: after shooting, the most active of them mounted the “quads” and rushed to the neighboring field. A huge area, knee-deep snow - what else is needed for a full test of the “scrap”?

And then the same 700D flashed again. Requiring less effort from the driver than the 800D, it could both sail through virgin snow and vigorously cut trajectories. The UTV 800H practically kept up with it. The action plan is simple: fasten your seat belt, grab the steering wheel tightly and press the gas pedal to the floor. The main thing in this case is not to forget to seat a passenger: without such an important ballast, dynamic right turns can be achieved on two wheels. Or even end up neatly laying the UTV on its side.

Let's ride. Frozen. It's time to go to base. The way back was surprisingly easy, apparently, the prospect of tasting freshly cooked hot soup in a warm hut attracted all participants with equal force. And already there, in the warmth, some thoughts about using the “quad” as a winter off-road vehicle finally took shape in my head.

Firstly, this is not a snowmobile, and you shouldn’t demand from it the same cross-country ability and dynamics in half a meter of powder snow. Yes, he will pass, but he will have to work. You can significantly simplify the task by purchasing a set of tracks. This, again, will not make a “snowball” out of a “quad”, but it will significantly increase both cross-country ability and speed. Moreover, in terms of budget, such a modification is incomparable to buying a snowmobile.

Secondly, driving a quad in winter has certain nuances. Thus, wonderful off-road tires, which can cope with deep sand and muddy clay without any problems, become very hard and slippery at very low temperatures, requiring precise operation of the throttle trigger.

Thirdly, winter means not only slippery surfaces, but also simply low temperatures. And here you immediately feel the lack of “mugs” on both the 700D and 800D for hand protection and heating of the handles and trigger. In principle, such a feature will not hurt in spring and autumn, and even in summer it can be oh-so-cool in the mornings.

And one more important point is equipment for winter trips. I had the opportunity to see from my own experience that neither a snowcross jacket nor motocross boots are the best option for long crawls in the forest. Still, a classic “fisherman’s kit” from a special equipment store will be much more appropriate and comfortable in these conditions.

Possible generator breakdowns

All generator malfunctions can be divided into two types - mechanical and electrical. Mechanical breakdowns can be identified by visual inspection of the device (cracks in the housing, wear of the tension roller or belt, delamination, etc.). To identify electrical faults, special tools are needed.

Common generator problems

Table. Damage to the electrical part of the generator.

Some faults are difficult to notice, so drivers come to the service center with a generator that is no longer working and a “tired” battery. Therefore, it is important to periodically diagnose the generator using a multimeter.

How to test a generator with a multimeter

Multimeter - what is it

A multimeter is a measuring device used to measure resistance, current or voltage. Also, using such a device you can check the wiring for breaks. Each of these measurements involves the use of separate measuring instruments, such as a voltmeter, ammeter or ohmmeter. Therefore, a multimeter is considered a universal tool (mulmeter = voltmeter + ammeter + ohmmeter). In practice, analog and digital multimeters are used.

What is a multimeter

Analog

This multimeter is equipped with a special hand, like on a watch, by the movement of which the measurements are read. The analog multimeter is also equipped with a measuring scale with resistance, current and voltage values. The device is inexpensive, so it is very popular. The disadvantages of an analog multimeter include measurement errors (this mainly applies to products made in China).

Analog multimeter

Digital

Unlike an analog multimeter, a digital multimeter has an LCD or LED screen that displays data. These devices are easier to use and also have high accuracy, which cannot be said about cheaper analogues.

Digital multimeter

Note! Some types of digital multimeters can work in conjunction with a computer, transferring data obtained as a result of measurements to it.

Video - How to use a multimeter

Photo report: How to check a scooter's generator?

Just like that, without minimal knowledge of electronics, at least at the school curriculum level (like mine) and a simple multimeter tester, you won’t be able to test the generator, don’t even dream about it. Before taking on such work, you should at least be able to use a tester and understand that current can be alternating or constant, know what an electrical impulse is and what resistance is. Do you know all this? Have you held a tester in your hands? If yes, then let's not hesitate.

Checking the functionality of the generator should begin with measuring the voltage that the generator itself must generate and transmit through wires to consumers. We look at where the wiring harness from the generator comes out of the engine - we move along it until we reach the connector with which the generator is connected to the on-board network of the scooter.

On the vast majority of scooters, the alternator connector looks something like the picture. In the common connector, there is one plug and two wires that are connected to the scooter’s on-board network through round terminals.

The plug combines the connectors of the two main windings of the generator: The working winding (yellow wire), which ensures the operation of the headlights, turn signals, lights and other consumers. And the control winding (white wire), the control winding provides voltage control in the main winding of the generator. That is, when the voltage in the operating winding of the generator increases above the specified limits, the relay-voltage regulator supplies current to the control winding of the generator, due to which the voltage in the operating winding of the generator drops to the specified limit. When the voltage drops, the reverse process occurs.

In this generator, the main windings are wound with thick copper wire on six coils.

The third winding of the generator, which is usually called high-voltage or inductive, and the magnetic induction sensor of the generator are connected to the scooter’s on-board network through round terminals.

High-voltage winding of the generator - ensures the generation of high alternating voltage (the voltage in this winding can reach 160 V or more), which directly enters the switch where it is rectified, then accumulated in the capacitor and at a certain moment in the form of a pulse is supplied to the ignition coil.

In this generator, the high-voltage winding is wound with a thin copper wire on two coils. The high-voltage winding coils are carefully insulated on the outside.

There are generators in which the high-voltage winding is wound on only one coil.

A small clarification: ignition systems in which a DC CDI type switch is installed, the high-voltage winding does not participate in the formation of a spark charge on the spark plug, so there is no point in checking it. Scooter manufacturers install a generator with a high-voltage winding, but do not use it (meaning ignition systems with a DC CDI switch). It's just wound on the generator and that's it. I will say more: due to the fact that the winding is not loaded with anything during operation of the generator, over time it simply burns out.

Technical specifications

Below are the main technical parameters and reviews about the Stels ATV 800 Max Efi ATV.

Characteristics:

• The power unit is a two-cylinder four-stroke V-shaped engine.
• Power – sixty-seven horsepower with a volume of eight hundred cubic centimeters and a maximum speed of 6000 rotations per minute.
• Cooling and starting - liquid/injector with electric starter.
• Transmission – all-wheel drive, cardan transmission, CVT.
• Length/width/height – 2.34/1.22/1.42 meters.
• Wheelbase – 1.53 m.
• Ground clearance - thirty-one centimeters.
• Weight – 0.36 tons.
• Fuel tank - twenty-nine liters.
• Suspension type – rear independent with a pair of levers, front – similar.
• The brake system is a disc unit.
• Tires – AT-29*9/AT-29*10 (12).
• Frame type: steel tubular structure.