Motorcycle Ural Technical Characteristics Fuel Consumption • Technical characteristics

It all started back in 1961, when the production of Ural-375 trucks started at a plant in the city of Miass (Ural). Despite the fact that this model was constantly modernized, the truck turned out to be not only reliable, but also durable. However, there were also disadvantages, including working with high octane gasoline. They wanted to remotorize cars back in the 60s. The Urals themselves planned to develop diesel, but due to financial problems their plans failed.

That is why the development of a new engine and gearbox began in Yaroslavl. The diesel engine received a serial number and the name YaMZ-740, while the prototype of the truck began to be called Ural-E4320. Until the fall of 1975, several test tractors and flatbed vehicles were produced. However, production began after the documentation was completed. The entire Ural model range.

Technical characteristics of the Ural Tourist motorcycle

This model of the “Ural” can be compared to a heavy horse, which, despite bad weather, confidently pulls the assigned load towards the goal. The Ural Tourist stroller model, being in service with the traffic police, has long been loved by drivers, and they have carried this love through the decades. Once upon a time, Ural designers took the German developments “BMW-R 71” as the basis for creating a motorcycle and to this day they are trying to bring their own bit of modernization to them. This leads to the fact that models of this type are incredibly popular abroad. The factory variation of the Ural Tourist motorcycle is the all-wheel drive “Tourist 2WD”.

The Ural Tourist motorcycle is an example of a classic heavy trailed motorcycle vehicle, created specifically to easily cover any distance, move over rough terrain and highways, traveling with a passenger. Rationalization decisions of Soviet citizens in the absence of a passenger resolved the issue of extra space quite quickly. The motorized vehicle carried any luggage and various sizes of rural luggage, once again emphasizing the excellent endurance of these vehicles.

Technical characteristics of the Ural Tourist are constantly undergoing factory innovations. The latest models of this class received an engine with a power of 45 horsepower and a volume of 750 cm3.

Nineteen-inch wheels also give confidence when moving. These qualities give the motorcycle a run-up speed of up to one hundred and twenty kilometers per hour. These components only increased the endurance of the motorcycle. With proper care, it is practically eternal.

Standard equipment for all trailers includes a luggage rack mounted on the spare wheel, a parking brake and handles for passenger convenience. The seat is double adjustable and split. The video with the Tourist demonstrates factory proposals for completing the motorcycle. This could be a crankcase or sidecar front or rear protection, a raised exhaust system, a waterproof cover and wheels with high cross-country ability. The original color palette is not large: blue, green, classic black and with the addition of circus.

A world-famous foreign manufacturer also took part in enhancing the reliability of the motorcycle, providing its internal parts with imported components.

Description of design

The basis of the all-terrain vehicle is a frame made up of two spars stamped from steel, cross members and a front buffer. The spars have a variable cross-section along their length, ensuring uniform strength and rigidity of the structure.

The connection of the frame elements is made using rivets. The last cross member is equipped with a towing device. A fuel tank is installed on the frame. Its filling volume is 300 liters.

The front axle is mounted on longitudinal springs, supplemented by hydraulic shock absorbers. Rubber suspension travel stops are installed on the axle shafts and frame. The front end of the spring is mounted on a bracket through a pin, the rear end is movably mounted in an eye.

One of the sheets has a restrictive bend that prevents the spring from falling out of the bracket. The rear suspension is balanced, the spring moves freely in lugs installed on the axles.

Engines

The Ural-4320 all-terrain vehicles used several types of diesel engines. The engine type is reflected in the modification index added to the model. The “clean” version 4320 is equipped with a naturally-aspirated diesel engine of the KamAZ-740 type.

The engine has a V-shaped arrangement of eight cylinders and develops a power of 210 hp.

The Ural-4320-31 version is distinguished by the use of the YaMZ-238M2 8-cylinder power unit. The engine is built in a V-shape and develops a power of 240 hp. and complies with Euro-0 standards. A similar diesel engine is installed on modifications 4320-30. The technical characteristics of the Ural-4320-31 do not differ from the basic version.

The Ural-4320-10 modification is equipped with a 180-horsepower YaMZ-236M2 diesel engine. The six-cylinder engine has a V-shaped layout and an atmospheric air supply system. The first production of vehicles with a YaMZ-236 engine had an engine compartment similar to that of all-terrain vehicles with a KamAZ-740 engine. Since the mid-2000s, an extended compartment began to be used, which became standard for all variants of the Ural-4320 all-terrain vehicles.

Versions 4320-41 and 4320-40 received a diesel engine of a similar design, but equipped with a turbocharger and compressed air intercooler. Due to the turbine, power increased to 230 hp. Another difference is compliance with Euro-2 emissions standards (versus Euro-0 for a naturally-aspirated engine). Fuel consumption on the Ural-4320 with turbodiesel power plants is slightly lower.

Transmission

All-terrain vehicles with a KamAZ diesel engine were equipped with a 5-speed YaMZ-141 gearbox and a dry-type double-disc clutch. The Ural-43206 vehicle is equipped with a 5-speed YaMZ-236U gearbox. The clutch drives on all gearbox options are equipped with a pneumatic booster.

In addition to the main gearboxes, all Ural-4320 all-terrain vehicles use a two-speed transfer case.

The torque from the box is transmitted to the gearbox using a short driveshaft. The box includes a center differential equipped with a locking mechanism. The differential has an asymmetric torque distribution scheme.

The gearbox and transfer gear are controlled mechanically from the driver's seat using levers and a rod system. A power take-off box is installed on the transfer gearbox, which is used to drive a self-pulling winch installed under the cargo platform at the rear of the all-terrain vehicle. The winch is driven by three cardan shafts.

The bridges are equipped with a unified main pair, with double torque conversion. The first stage of the gearbox consists of bevel gears with a spiral tooth shape. The second stage includes two spur gears. Uraz-4320 all-terrain vehicles can be equipped with gearboxes with a gear ratio of 6.7...8.9 (a total of four gear ratio options).

Behind the main pair there is a bevel-type differential that controls the rotation of the axle shafts.

The axles have a through design; the middle axle is used to drive the rear axle gearbox. The front axle axle shafts are equipped with steering knuckles equipped with constant velocity joints.

Steering and electrical system

The steering of the Ural-4320 vehicle is equipped with a hydraulic booster operating in two directions. The steering column is connected to the gearbox via a cardan shaft. The column is not adjustable. The Ural-4320 all-terrain vehicles use an electrical system with an operating voltage of 24V. The negative terminals are connected to the car body.

Brake system

The brakes have a combined hydropneumatic drive. The hydraulics have two separate branches. The first controls the brakes of the front and middle axles, the second controls the brakes of the rear axle wheels. A tap is installed on the rear cross member of the frame for connecting the pneumatic brakes of the trailer.

The parking brake of the Ural-4320 vehicle is installed on the output shaft of the transfer gearbox. The brake is connected to the trailer brake valve by a mechanical rod. To improve braking performance, an engine compression brake is installed, which cuts off the fuel supply to the injectors.

Drum-type brake mechanisms are equipped with a system for automatically adjusting the gap between the linings and the friction surface of the drum. The mechanisms are located directly at the wheels of the all-terrain vehicle.

Body and other equipment

The Ural-4320 all-terrain vehicle is equipped with a completely metal cabin equipped with hinged doors. The cabin has an adjustable driver's seat and a rigidly fixed two-seater seat for passengers.

The salon is equipped with a ventilation and air heating system.

At the rear of the cabin there is a metal cargo platform equipped with a removable awning. To install the awning, arcs are used, which are installed in guide grooves on the side boards. The platform is equipped with two folding benches along the sides and an additional removable bench installed in the center.

The benches can accommodate 27 people. The Ural-4320 truck platform has a load capacity of 5000 kg when operating an all-terrain vehicle on roads with any surface. The overall dimensions of the platform have not changed compared to the Ural-375D.

Current modifications

The design of the machine assumes a front-mounted engine, the hood opens upward to access the power plant, and there are wide flat wings on the sides that protect the driver’s cabin from dirt when driving. The largest market for Ural motorcycles is the USA, where IMZ has a developed dealer network of 58 dealers and, before the global crisis, sold about 650 motorcycles with sidecars per year, about 60 edition 18.

Ural-4320 photo

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Conclusion Maintenance

After the Irbit plant created a new forced overhead valve engine and began installing it on the M 72 motorcycle, the transitional model M 61 appeared. The archaic and outdated design half a century ago is unreliable, but thanks to its simplicity bordering on primitivism, it is easy to maintain and repair.

Engine

Motorcycles from IMZ position themselves as modern motorcycle technology with a Russian (male) character.

They are equipped with a powerful 2-cylinder four-stroke boxer OHV engine with 42 horsepower. The engine displacement is 745 cc. cm3. In the process of developing technology and improving production technology, the Ural engine has been modernized more than once. The last major changes happened quite recently. Firstly, Ural announced a reduction in its model range. Now the retro model M70 is not available for purchase. Two models remain available for purchase - Ural St and Ural Gear Up with a wheelchair wheel drive.

These two motorcycles will receive a modernized and improved 0.75-liter engine.

The cylinder heads have been completely redesigned to improve the efficiency of the cooling system. The manufacturer supplied new intake and exhaust pipes, new valve covers. The piston group has become even lighter: lightweight pistons made of an alloy of aluminum and silica have finally replaced forged products. The anodized top part gave the pistons additional stability and reliability. The fuel injection system has been redesigned. The gas tank now has a modernized fuel pump; a modern TPS has been installed along with an XX sensor, which has contributed to improved engine performance.

Other important changes:

• We installed a one-piece forged generator adapter shaft;
• bimetallic piston pin bushing;
• piston rings now fit better to the cylinders due to precision cylinder honing technology;
• the size of the gaps in the piston rings is optimized;
• Teflon coated piston skirt;
• increased engine efficiency and fuel economy due to reduced ring friction (they received a manganese phosphate coating).

They designed a different, more reliable engine sump that did not reduce ground clearance.

In general, it can be noted that the Ural boxer engine has become even more durable. IMZ engineers made an attempt to increase the life of the power unit, since the motorcycle engine was often criticized for its fragility.

Disadvantages of the IMZ-8.103-10 (IMZ-8.103-30, M-67-36) engine of the Ural motorcycle

• Small resource;
• Starting is difficult or does not start at all;
• In hot weather, it gets very hot in low gears;
• Interruptions in the operation of the cylinders;
• Knocking;
• High fuel consumption;
• There are a sufficient number of cases of inaccuracy in the manufacture of the engine crankcase at the cylinder mounting points;
• It is difficult to select timing gears to replace worn ones;
• Oil is leaking at the joints.

More details about the disadvantages...

Unlike engines of analogue imported motorcycles, the service life of the IMZ-8.103-10 engine before repair is small, from 20 to 45 thousand km, which is explained by increased wear of the crank and piston group parts. Increased wear is a consequence of insufficient air cooling, as well as not very good quality of parts (material, manufacturing accuracy).

Difficulty starting or won't start at all

For the most part, starting the IMZ-8.103-10 engine is difficult when the ignition, fuel supply and clearances in the valves of the gas distribution mechanism (between the rods and rocker arms) are not adjusted. The reason may be reduced compression in the cylinders, clogged carburetor jets, water in the carburetors, spark plugs not working, a failed condenser, a lean mixture of fuel coming from the carburetors (too much fuel).

In hot weather it gets very hot in low gears

Unfortunately, air cooling has a detrimental effect on the engine when operating in hot weather. Therefore, in hot weather, when driving in lower gears, overheating should not be allowed, so it is necessary to stop more often to cool the engine. If the engine is new, it can easily overheat.

To a greater extent, interruptions in the operation of the cylinders are caused by the lack of synchronous operation of the cylinders due to different amounts of the supplied combustible mixture, and by a violation in the adjustment of the valves.

The cause of engine knocking may be: pre-ignition; overheat; wear of pistons, rings, fingers; wear of the crankshaft main bearings; valve adjustment is incorrect.

Carburetors are simple and uneconomical, the consumption even according to the instruction manual is like that of a Zhiguli, but in reality it is even higher. During the Soviet era, they didn’t think about efficiency, and drivers poured gasoline into the ground; there was nowhere to put it. These fuel costs are too high for a motorcycle these days.

There are a sufficient number of cases of inaccuracy in the manufacture of the engine crankcase at the cylinder mounting points

This leads to overheating of the cylinder due to the difference in size until the upper plane of the pistons at top dead center aligns with the upper edge of the cylinders. In the event that one of the cylinders overheats and there is no cure for this, as an option it is necessary to check whether the piston at its highest point reaches the upper plane of the cylinder; if not, then this is the problem. To eliminate overheating, it is necessary to achieve symmetrical dimensions, for which purpose the gaskets are removed from under one of the cylinders, and in its place a heat-resistant sealant is used when installing the cylinder. It is possible to install a thinner gasket.

It is difficult to find timing gears to replace worn ones

This problem is associated with the difficulty of finding a set of gears (gears) corresponding to the size group of the crankcase with the dimensional indices. There are a lot of these gears on sale, but there are no markings (indices) on them, or there is a designation, but it is not suitable. You can read about the correspondence of gear indexes and crankcase size groups here.

FAQ

• How interchangeable are their spare parts with the Urals? Many components fit from one brand of motorcycle to another. In this case, spare parts from, for example, a gearbox may not be suitable, but you can replace the entire assembly.
• In Russia, does it make sense to buy the Dnieper, or is it better to look for the Urals? I am looking for a motor for restoration and restoration. Why not? In the USSR, a variety of oppositions were distributed throughout the country.
• Can the cylinders on the MT 10 36 engine be bored? Yes, the quality of the metal there is good, the alloy is not at all porous, and cavities are rare, so it can be bored. At your own peril and risk, of course.

Transmission. Technical specifications

Ural M-67-36 1976 1984 due to changes in the design of the cylinder heads, the use of K-301G carburetors with an increased diffuser diameter and an increase in the diameter of the exhaust system, the engine power was increased from 23.5 to 26.5 kW. The engine of the Ural motorcycle was constantly modernized during the production process and its latest modification in 2015 has technical characteristics of the modern level.

History of creation

The appearance of the Ural-4320 diesel all-terrain vehicle is associated with rising prices for gasoline, which was used as fuel on the Ural-375D. The new truck had lower fuel consumption, but in cross-country ability it was somewhat inferior to its gasoline counterpart.

During mass production, the truck was modernized several times and received new engines and gearboxes. At the same time, the appearance of the car has changed little.

The production of various variants of the Ural-4320 is currently ongoing. Trucks come with several engine types, wheelbases and payload capacities.

Serial production of the Ural-4320 all-terrain vehicles began in 1977.

The vehicle is widely unified in a number of components with the Ural-375D gasoline all-terrain vehicle. Parallel production of gasoline and diesel versions continued until 1992.

Engine head tuning © Factory history

• Foot starter (kickstarter);
• Gas and clutch cables;
• Generator;
• Carburetors;
• Cylinder heads;
• Reverse gear (gearbox).

Repair and maintenance • For this reason, the entry of small debris does not cause much harm, burning inside.

Options and prices

Today, the Irbit Motorcycle Plant offers to purchase one of two available models - Ural Gear Up 2021 and Ural City 2020.

The price tag for the first motorcycle starts at 879 thousand rubles. For the second two-wheeled vehicle you will have to pay at least 798 thousand rubles.

The basic package of Ural Gear Up 2021 2WD includes the following technical equipment:

• LED fog lights for strollers;
• stroller cover;
• trunk;
• universal spare wheel (suitable for all 3 positions).

The basic package of Ural City 2021 is much simpler: only additional glass for the stroller and a cover are included. At the same time, the equipment is guaranteed for a period of up to 12 months. For an additional fee, the motorcycle will be painted khaki. The buyer can choose from three styles: “Desert Camouflage”, “Forest Camouflage”, “Forest Fog”. All wheels are equipped with disc brakes. Traditionally, the right hand operates the front 4-piston Brembo caliper, while the foot simultaneously operates the Hayes Brakes piston floating caliper on the rear wheel. The downside is that there is no ABS, although perhaps this is just a matter of time.

URAL WITH STROLLER IMZ 8.103-10

technical characteristics of the model

SHTRLZ pedestrian Sat, 01/30/2010 — 15:08

four in a wheelchair 130

URALFEDOR Sat, 08/29/2009 — 16:19

with a sidecar 100 mph, without a sidecar 110 mph. He doesn't need more. And everything is standard.

pedestrian Thu, 05/21/2009 — 10:57

I installed cam ignition on my Urals, 6 volt coil, Czechoslovakian carburetors just like in Java. fuel consumption increased a little, but it went completely differently with the sidecar, I took 135 on it without the sidecar, I couldn’t overtake the Java 350, I took 145 on it

pedestrian Tue, 19/05/2009 — 15:30

I have one that comes with a 130 stroller. and on the single 120 it no longer blows away

pedestrian Sat, 02/05/2009 — 20:39

tell me brothers! Because of the flywheel, the oil is steaming right through the inspection window. I changed all the seals and it still blows. What’s wrong?

pedestrian Fri, 01/05/2009 — 09:28

You install pistons with a spherical head, pour in 92 gasoline and it rushes like a tank without a cradle; 120 didn’t accelerate any further; the wind blows.

kornil Fri, 03/04/2009 — 18:14

Why 32 hp? I have 36 hp on IMZ 8.103-30.

pedestrian Sun, 03/29/2009 — 13:56

I have a 1962 Ural that only goes over a hundred

pedestrian Thu, 03/26/2009 — 21:40

I like this cart, but anything larger than 105 does not work

pedestrian Tue, 03/24/2009 — 21:15 MetallNick Wed, 11/12/2008 — 20:21

during the run-in, 120 did not calmly go any further, although there was a reserve of gas

pedestrian Tue, 07/29/2008 — 22:51 NUS Wed, 07/02/2008 — 09:39

After 1500 km of running, I decided to test the maximum speed on my Polaris. So, Easily scored 105 and still had gas reserves (I didn’t remove the limiters from the carbs). And while I was happy that I was going so fast, a single Dnieper passed me like a man standing. To be honest, I was shocked. Here !

pedestrian Wed, 03/26/2008 — 20:17

I have one, the tank is a little modernized from the K-750, I haven’t really driven it yet, I’m doing it, but my brother did the same on it for 150 km/h without a cradle and with a high-speed gearbox. True, the motorcycle is not designed for such feats)))

pedestrian Mon, 08/27/2007 — 10:22

Complete fucking!! The Katsaps haven’t learned how to do shit! Here in Talin everything rules!

pedestrian Sun, 07/09/2006 — 16:02 pedestrian Tue, 05/30/2006 — 06:49

I have one without a stroller. I overclocked mine to 120, but since it was in city mode, I didn’t dare push it any further. It accelerates quickly, the car is crazy.

pedestrian Fri, 03/10/2003 — 17:22

au meny poka 90 tolko dimit mnogo

pedestrian Sat, 08/23/2003 - 07:36

and some shout that it’s 150 (without a stroller)

Malfunctions

One of the features of the power units of Ural motorcycles is the relatively frequent occurrence of minor faults, which must be eliminated quite quickly. Delaying repairs can, and usually does, lead to more serious damage and a significant increase in the cost of repairing them. The main malfunctions and the reasons for their occurrence are summarized in the table.

Clutch adjustment Specifications

The unit called MP-5 Ural-2T Electron is a gas-powered saw for felling and bucking trees, as well as further processing of firewood. A fork spring is screwed onto the spiral groove of the shock absorber body nut, the upper end of which is screwed onto the spring tip mounted on the rod and clamped between two nuts.

It’s possible to make a diesel motorcycle with your own hands

Installing such a motor into the design of a two-wheeled iron friend is not so easy. To connect the engine to the gearbox, the engineer had to cut the frame and then make it 38 mm longer. The flywheel, which was standard installed on the Czech unit, did not fit, so the creator of the design installed an MT flywheel, now it works in tandem with the original one. In order for the motor to work properly with the gearbox, it was necessary to sharpen the aluminum adapter. Now this adapter connects the motor and the box.

Owner reviews • Technical specifications

Application and interesting facts

For supplies to the army, the Ural-4320-01 chassis was created, used for installing special equipment. The Ural-43203-01 chassis is designed to accommodate Kung-type vans. When installing the YaMZ-236NE2 motor, the chassis index changes to Ural-4320-1951-60.

For installation of heavy army or military equipment, an extended Ural-4320-1912-40 chassis is used, equipped with an additional power take-off system. The chassis without selection is designated Ural-4320-1951-40. The chassis dimensions are shown in the table.

Several armored army vehicles were created on the basis of the Ural-4320. There are versions with an armored cabin or with an armored module installed on the cargo platform for transporting personnel.

The hood layout of the vehicle increases the survivability of the equipment and provides increased safety in case of mine and land mine explosions.

A 1:35 scale model of the Ural-4320 army truck is produced by Russian (catalog number 3654) and Chinese Trumpeter. The domestic model is cheaper, the Chinese one has improved detailing of small details. Add-ons are available for models (resin wheels, photo-etching kits) that improve copyability.

Notes

1. ↑ 12
   Official website of the Irbit Motorcycle Plant
2. Ural motorcycle specifications
3. Motorcycle Ural Wolf
4. The production of the legendary Ural Wolf model has been discontinued
5. In the Russian army, military motorcycles were “destroyed as a class”
6. Anti-tank guided missile 9M113M of the Konkurs-M complex Archived on March 27, 2012.
7. IMZ-8.1030 URAL ATGM
8. IMZ-8.1030 GEAR-UP MOTORCYCLE on warfare.be
9. Collection motorcycle Ural (unspecified)
   . Motonews.ru. Retrieved May 13, 2021.
10. Ural Yamal: motorcycle-icebreaker (undefined)
    . Auto Mail.Ru. Retrieved May 13, 2021.
11. Ural Gaucho Rambler LE (undefined)
    . Auto Mail.Ru. Retrieved May 13, 2021.
12. "Ural" on solar batteries (undefined)
    . Auto Mail.Ru. Retrieved May 13, 2021.
13. The Ural motorcycle will receive a version for Darth Vader (undefined)
    . Auto Mail.Ru. Retrieved May 13, 2021.
14. The Irbit Motorcycle Plant presented an anniversary motorcycle with a sidecar, Ural Ambassador (Russian), UINCAR
    . Retrieved May 13, 2021.
15. ↑ 1 2
    Characteristics of Ural motorcycles
    (unspecified)
    (inaccessible link). Retrieved August 31, 2012. Archived February 26, 2013.
16. ↑ 12
    Ural entered the top ten best motorcycles of 2010
17. List of changes in the design of Ural motorcycles (unspecified)
    (inaccessible link). Retrieved November 29, 2011. Archived January 13, 2012.
18. From Russia, a Motorcycle Built for Two
19. Sales of Ural vehicles in the United States increased by 39% in 2010
20. Retro Russian Import Lures Older Riders
21. 2011 Ural Gear-Up Sidecar Review
22. M70 Anniversary Edition (unspecified)
    (unavailable link). Retrieved November 29, 2011. Archived November 25, 2011.
23. A batch of Ural motorcycles is preparing to be sent to Iraq (unspecified)
    (inaccessible link). Retrieved November 29, 2011. Archived March 4, 2021.
24. ↑ 1 2
    In the hands of Iraqi craftsmen, Russian motorcycles turn into combat vehicles
    (unspecified)
    (inaccessible link). Retrieved November 29, 2011. Archived March 4, 2021.
25. The Urals are still very far from reaching their ceiling in the USA, motonews.ru
26. Russian Motorcycle Racers Carry Sochi Olympic Torch
27. Russian motorcycles took part in the opening of the 2014 Olympics
28. Russian Ural presented an electric prototype with a sidecar

Heavy Russian breed

Due to the intensive development of agriculture in Russia, horses were needed that could perform heavy physical activity. Draft horses are excellent at transporting large loads and plowing fields. Despite their power, they are rather short animals with a height at the withers of up to 150 centimeters. This species has very developed muscles and an impressive appearance. These horses are very hardy, agile and have great strength. Representatives of this breed are able to cover a distance of two kilometers with a load of up to two tons. The main characteristics include the following indicators:

• the whole appearance is dark red in color;
• very beautiful exterior;
• high fertility;
• harmonious structure of the whole body.