High Fuel Consumption on the Lynx 500 Snowmobile • Dimensional data

Lynx 500 is a universal snowmobile, developed by the Ufa Engine Plant. The car entered mass production in 1991. This device is one of the latest models of the company, which announced the completion of its production in 2009. Over the many years of production, the model in question has shown all its strengths and weaknesses, and overall, it has become a successful snowmobile that can still be found in good condition.

During the development of the Lynx 500 snowmobile, special attention was paid to practicality and proven technical solutions. The developers set out to make a reliable device with high off-road performance - with the goal that residents of the northern regions would be more interested in it. To adapt the model to harsh climatic conditions, it was equipped with a spacious trunk, a high windshield, a comfortable suspension and a powerful engine that has an uninterrupted starting system in frosty weather.

We must admit that this is a very fast and maneuverable car, capable of dynamically moving not only on a well-trodden, flat road, but also on loose and deep snowdrifts. The car moves smoothly thanks to the energy-intensive suspension, which is protected from breakdowns. Especially for this purpose, the front and rear suspension have an improved design, adapted to driving on uneven roads. Also, to improve cross-country ability, the vehicle was equipped with a wide caterpillar track.

Lynx 500 is a multi-purpose snowmobile. It has improved performance characteristics compared to its predecessors. The machine stands out for its high power and good traction characteristics. In addition, it is very economical and ideal for work trips. In particular, Lynx 500 can be used on farms, in forestry, and is also in great demand in operations related to the maintenance of oil and gas pipelines. In addition, Lynx 500 takes an active part in patrolling state borders, which is very important for security purposes. The developer adapted the model to snowy off-road conditions, as well as the ability to cover long distances and drag a large load weighing up to 250 kg. Among other features of the technology, we note its adaptation to low ambient temperatures, down to minus 40 degrees. This was confirmed by successful factory tests in Yakutia, beyond the Arctic Circle. For this, the machine is equipped with all the necessary options.

Modifications

The Lynx 500 snowmobile received several modifications, each of which was in deserved demand on the Russian market, as well as throughout the post-Soviet space:

1. Lynx 500+. This version is intended mainly for tourist trips, and is less suitable for work purposes. In this device, the width of the caterpillar track is 500 mm, which is enough for high maneuverability on any surface - from smooth knurled roads to deep and loose snow. The basic configuration includes an electric starter, which makes starting the engine easier in any weather.
2. Lynx 500M. In this version, the car features a modified hood, as well as an improved carburetor. Thus, the device is equipped with a single-chamber carburetor from the Japanese company Mikuni. This component turned out to be more reliable than the original domestic carburetor. In addition, Mikuni is designed for increased loads. Also in the basic configuration of the Lynx 500M snowmobile there is an electric starter.
3. Lynx 500MP. An improved snowmobile with an updated hood and a single-barrel carburetor system. The machine is equipped with a gear transmission. The design of the device can be compared with the previous version. As in other versions, the Lynx 500MP snowmobile is also equipped with an electric starter.

All the modifications discussed are very popular among hunters and fishermen. These vehicles are able to overcome any hard-to-reach places and are capable of performing any off-road tasks.

Management

The instructions for the Lynx 500 snowmobile contain sections with:

• description and operation of the device;
• storage;
• management;
• a list of faults and ways to eliminate them;
• recycling;
• maintenance.

Before turning on the engine

You will need to check the gas and brake by installing the equipment on the handbrake. Attach the cord to your clothes to stop the engine. After starting the engine, release the brake lock. While using the snowmobile:

• Do not overload it, as this may cause a malfunction;
• It is prohibited to operate the engine at high speeds without additional load;
• It is recommended to prepare the fuel mixture, observing all safety precautions;
• Run-in is recommended (at least 300 km at a speed of 45 km/h without an additional passenger) at speeds up to 60 km/h;
• You should occasionally check the quality of the spark plugs: there should be no damage to the electrodes, it is important to ensure that there is free space between them.

The runners can only be deployed while the snowmobile is moving to avoid damage to the steering wheel.

Power System Maintenance

This procedure includes:

• scheduled maintenance, diagnostics of fastening reliability and quality of connections;
• cleaning the carburetor elements, its channels, as well as periodic maintenance (TO-3);
• washing the fuel tank, fuel lines and filter elements.

Gradual clogging of the filters leads to changes in the operation of the power system - this reduces the quality of fuel purification, and blockages and deterioration of carburetor settings lead to a deterioration in the composition of the combustible mixture at different engine operating modes.

Typical fuel system malfunctions and ways to solve them

Carburetor adjustment

Complete disassembly of the device is carried out only if it breaks down: with an increase in fuel consumption, an intense decrease in power and excessive operation at idle speed.

Procedure for cleaning and assembling the device:

1. The carburetor is dipped in kerosene for 15 minutes.
2. The elements are washed well and cleared of resin.
3. Washing is done with unleaded fuel. Nozzles with air ducts are blown with compressed air.
4. If the nozzles are severely clogged, they should be cleaned with a wooden stick soaked in acetone. You should not clean the injectors with wire, as this leads to increased fuel consumption.
5. During the assembly process, each jet is installed in its place.
6. To prevent changes in the original shape of the flanges, the carburetor nuts will need to be tightened evenly.

The adjustment is performed after checking the power unit, power system and ignition system settings.

Cases when adjustments should be made

Adjustment is made if the following operational characteristics of the Lynx 500 snowmobile change:

• difficult start;
• unstable idle speed;
• increased fuel consumption;
• unstable operation of the motor under heavy load (jerking in the gearbox while the device is moving).

Carburetor settings are monitored on a warm power unit.

Snowmobile specialist "Buran". I go fishing in my free time.

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The carburetor is used with a securely connected receiver. Changes to the structural elements of the receiver must not be allowed. The fuel that enters the carburetor must be cleared of impurities. Parts are washed only with hot liquid; the use of solvent is prohibited. After the work is completed, the product is blown and dried. Cleaning calibrated holes with wires is prohibited.

Adjusting the idle system

Produced on a functioning engine without additional load. Idle speed (idle speed) is adjusted to p=1500±100min-1. Using the XX screw, stable speeds are established, rotating the quality screw (VK) to achieve the highest speed.

The adjustment is repeated two to three times with a gradual decrease in engine speed as the throttle opens. If there is a problem, then enrich the mixture by turning the VK 1/4 turn. If the engine stops working when the throttle is suddenly closed, then lean the mixture by turning the AC valve 1/4 of a turn.

It is necessary to check the quality of the carburetor at speeds that exceed XX speed. To ensure free rotation of the track, you will need to raise the rear half of the Lynx 500 snowmobile by installing a stand.

Specifications

1. Dimensions, mm: Length – 3200, Width – 1240, Height – 710
2. Propulsion - caterpillar type, with front drive sprockets
3. Chain links, pcs. – 22
4. Chain pitch length/caterpillar belt – 16 mm/rubber-fabric, reinforced
5. Roller material – rubberized
6. Track width – 500 mm
7. Track windows, pcs. – 43
8. Track lug height – 23 mm
9. Track tensioning mechanism - screw type
10. Track pitch – 50 mm (length)
11. Weight – 280 kg
12. Engine – petrol, 4-stroke, with manual reserve
13. Electric starter – option
14. Fuel tank – 28 liters
15. Speed ​​– 90 km/h
16. Weight of towed cargo including sleigh – 250 kg
17. Control – hydraulic
18. Brakes – mechanical disc
19. Front skis - support-turning
20. Front suspension - independent pendulum chassis
21. Rear suspension – roller-slide
22. Headlight – halogen
23. The ignition system is electronic non-contact type.

Snowmobile price

Due to the cessation of mass production of the Lynx 500 snowmobile, finding it in a completely new technical condition is quite a difficult task (the model is not for sale on the official website). If you are lucky enough to find a car in the warehouse of some store, you will have to pay 185,000-210,000 rubles for it.

It is much easier and more economical to get used snowmobiles. The cost for them varies from 80,000 to 150,000 rubles (depending on mileage). As a rule, even Lynxes that have been used for a couple of seasons still serve well, as they retain their excellent driving and cargo qualities for several decades.

Spare parts price

Engine

For the Lynx 500 snowmobile, a compact engine with a two-stroke layout was produced. The lightweight engine made it possible to reduce the total weight of the snowmobile, and thereby improve behavior on the road. The two-cylinder engine develops a power of 30 kW or 40 horsepower. The engine operates efficiently due to the continuous operation of air cooling, thanks to which it is possible to work in any climatic zones with temperatures below and above zero degrees. A special lubrication system is of a combined type, with oil and fuel ingredients. This lubricant has a qualitative effect on frost resistance, which is very important in harsh operating conditions. Gasoline consumption per 100 km is 20 liters. Cheap AI-80 fuel can be used as fuel. In the basic configuration, the engine must be started manually, but an electric starter can be installed upon request. The electronic ignition system is a non-contact type, ensuring stable and smooth operation of the power plant.

Instructions for use

The instructions for the Lynx 500 (US-440) snowmobile consists of the following sections:

1. Description and operation of the snowmobile;
2. Intended use;
3. Maintenance;
4. Snowmobile storage;
5. Possible malfunctions and methods for eliminating them;
6. Disposal;
7. Certificate of acceptance;
8. Certificate of conservation;
9. Certificate of packaging;
10. Warranty obligations;
11. Reference normative documents.

How to set the ignition on a Lynx 500 snowmobile

For high-quality engine operation in hazardous conditions, you need to perform the correct settings. Before adjusting the ignition system, you should take into account the following parameter during the adjustment process - setting the advance angle (TAA).

To adjust the ignition, use the following tools:

• strobe;
• screwdriver;
• spanners;
• paper sheet;
• protractor ruler;
• compass;
• metal strip.

According to the instructions, draw a scale and mark the degrees on it, then draw a circle on paper so that its diameter matches the size of the fixed element of the mounted variator on the device. The central part of the circle is the middle of the edge of the crankshaft.

1. Using a protractor, write the degrees - a minimum of 0 and a maximum of 30, the marks are counted from the point that is equal to 12 o'clock on the dial, clockwise. Transfer the prepared drawing to the strip and attach it to the engine cover. Please note that the motor must be cooled beforehand.
2. Place the left piston of the engine in the “dead” position, but first unscrew the spark plugs.
3. Install a screwdriver into the well.
4. Turn the variator by hand while rotating the rod (shaft), while simultaneously watching how the screwdriver moves in the well. She should stand for a moment and immediately continue moving in the other direction.
5. After reaching the dead center, mark the point on the variator so that it is located opposite the “0 degrees” value, which is marked on the OZ scale.
6. Connect a strobe light to pick up the signal from the wire. Mount in the spark plug position and turn on the engine.
7. Point the stroboscope lamp at the scale, start the engine with an electric starter and increase the speed to maximum values. When reaching high speeds, the lamp should flash when a spark appears. This means that there is a coincidence with the scale mark on the variator, and the ignition timing can be determined.

To adjust the ignition timing, you need to turn off the engine, loosen the magdino screws and turn the base of the latter to the desired amount. Repeat the angle check using the strobe light.

Turning the base clockwise will make the lead angle smaller, and counterclockwise will increase it. A shift of 0.9 mm corresponds to a change of one degree.

After the replacement has been completed, the base of the magdino needs to be checked, the ignition timing must be set, and marks applied to the body part. At maximum engine speed, the ignition timing should be 21-23 degrees. In addition to high speeds, additional SOP can be checked at idle speed - 14-17 degrees and at start speed - 8.5-11 degrees. To set the correct parameters, you need to use a universal tachometer. Priority readings: the position of the magdino base, which provides the desired angle at high speeds.

Wiring diagram of the Lynx 500 snowmobile

Reviews

• Boris, Primorsky Krai. This snowmobile was purchased to replace the Buran, which my father and I actively used. Lynx 500 is an improved alternative to Buran, and we have seen this in practice. We bought the car in 2009 and are still using it. An excellent device in terms of its performance, and even from a design point of view. It consumes cheap 76 gasoline, and there are no problems with dynamics. For its price of 115 thousand rubles, the snowmobile is excellent. Compared to Buran, the car accelerates faster and brakes actively. The snowmobile is more maneuverable and practical, with a spacious trunk. Moreover, it is easy to maintain. One of the weak points is the capricious gearbox chain, which must be regularly tensioned, otherwise the chain will break and this will cause more serious problems. Overall, my father and I are pleased with the technology.
• Nikolay, Sakhalin region. Lynx 500 starts perfectly in cold weather at minus 40 degrees. What we need for our conditions. The car is equipped with wide front skis, and thanks to this it is very stable on uneven roads. So, rollovers and rollovers are absolutely excluded with this snowmobile. The configuration I chose has a heated steering wheel grip feature to prevent your hands from freezing. Of course, it was not without its shortcomings, as with any other domestic technology. The most serious and unsolvable problem is a weak engine that pulls poorly when driving uphill or on loose snow. Under such conditions, engine speed rises, which leads to excessive fuel consumption. In addition, strong noise and vibrations occur, which are then transmitted to the steering column. The gearbox does not have a neutral speed, and this is another serious disadvantage. The maximum speed on a flat road is 80 km/h. The car consumes much more than stated by the manufacturer - certainly more than 20 liters per 100 km, even in gentle driving mode.
• Alexey, Leningrad region. The car was purchased last spring in maintained condition. At that time of year, I managed to bargain well, and in the end the snowmobile cost me 90 thousand rubles. Condition is good. I started using it actively quite recently - after the new year 2021. I will say right away that the device is cheap to use. It handles well and is quite comfortable on long trips, thanks to heated grips and a large trunk. There is also a high windshield that protects from the oncoming cold wind. The roomy seat can accommodate a child (in front) and another adult passenger (behind me). In this case, the traction does not disappear, but the annoying noise of the engine rises. According to my passport, my model is from 2004, and has probably already changed 2-3 owners (it’s unlikely that the seller told me the truth). I travel for several hours every day. The Lynx 500 is ideal for fishing and hunting. I was pleased that all the necessary spare parts were available for this machine.
• Konstantin, Sverdlovsk. I was pleasantly pleased with this snowmobile. To be honest, I expected the worst. I liked that the gearbox has a reverse gear, which increases maneuverability and ease of turning. This function is very helpful in cases where the snowmobile sits on its belly somewhere in the wilderness. If necessary, you can turn on the heating of the steering wheel grips and feet, although the heat is almost not felt in the legs. The device as a whole is not bad, but the mediocre build quality does not bother me much - the parts are not neatly fitted. The instrument panel creaks, and there are knocking noises in the chassis. Unfortunately, the engine is difficult to start in cold weather, and to start moving it must first be warmed up well at idle.

How to improve driving performance?

To do this, you need to take care of the chassis, sometimes checking all the elements and monitoring the tightness of the fasteners.

Snow slightly wets the metal strips of the runner. Prolonged driving on icy snow can cause severe damage to the linings. In this case, they will need to be replaced by disassembling the track suspension.

Carry out the work in this way:

• unscrew the tension bolts;
• remove the bolts from the levers;
• tilt the equipment, pull out the suspension, change the skid pads.

To remove and then install the linings, you can use a wooden block and a hammer; assembly is carried out in the reverse order.

It is possible to improve the driving performance, ease of use and efficiency of a snowmobile by replacing standard parts or tuning them. With the help of a wide off-road track, maneuverability and maneuverability through snow drifts are significantly increased.

Video

119 440 500 Maximum speed 90 km h 75 km h 90 km h Track parameters 3.7 0.38 m 3.2 0.38 m 3.7 0.5 m Number of seats 2 2 2 Reverse Yes Yes Yes Speedometer Yes Yes Yes Front suspension Lever, with balancer carts Pneumatic Independent Type of service brakes Disc Friction, disc, mechanical Disc, mechanical Heated steering wheel Yes Yes Yes Windshield Yes Yes Yes Tachometer No Yes Yes Cooling system Forced type Air type Air type Displacement of the power unit 4 .31 l 4.31 l 4.31 l Power 38 l. This will lead to loss of power, inability of the snowmobile to develop high engine speeds, ignition of the exhaust mixture in the resonance pipe, burnout of the exhaust manifold, resonance pipe and piston.

Operating experience and features

Despite the success of the 110 model, reviews of the Lynx 150 ATV are far from ideal. Equipment owners, tempted by the affordable price, found a number of design problems:

• Poor build quality. In almost all devices the bolts are not tightened properly. If you don't tighten them right away, the car begins to fall apart while driving. Basically, the anthers fall off and the chain tensioner unscrews.
• Shaking. At low speeds the device behaves perfectly, but after the 35 km/h mark the car begins to vibrate. Because of this, problems arise with the main lighting, bolts become loose, etc.
• Poorly designed brakes. The factory assembly leaves much to be desired, so the user needs to independently inspect the mechanism and carry out alignment.
• Low load capacity.

Immediately after purchase, the owner of the Lynx 150 is recommended to carry out a full technical inspection, tighten the boots, change the brake pads, front hub seals, and secure the tie rod boots. Spare parts for domestic devices are cheap, so you can spend a couple of thousand rubles. With proper operation and timely maintenance, the machine will operate without serious breakdowns for 1-2 years.

• Good maneuverability. Lynx 150 drives through mud, sand, and confidently handles off-road conditions.
• Controllability. The ATV confidently takes turns and does not try to cover the rider. The playful and maneuverable horse is suitable for teenagers and children over 10 years old.
• Powerful LED lighting.
• Reasonable price. A new device costs about 90 thousand rubles.

The stylish device does not need tuning. Of course, users dream of installing a trunk, a comfortable seat, a durable bump stop and other body kit, but it all comes down to carrying capacity. The maximum load of the device is 75 kg, which eliminates the possibility of modernization in the bud.

The lineup

characteristics Lynx Taiga dynamism worse better neutral speed no possibility to turn over lower higher technical indicators better worse traction features higher lower metal frame with a hinged hood, all-welded. Lynx-sport 121 is a shortened version of the 119 model, which increased the maneuverability of the snowmobile and made it possible not only to travel, but also to compete.