How to make tuning a motorcycle "Ural" with your own hands

2024 Author: Erin Ralphs | [email protected]. Last modified: 2024-02-19 11:42

Ural motorcycles have been consistently popular for 70 years. Good care and tuning of the Ural motorcycle will provide it with a long service life. There are entire clubs and Internet resources dedicated to the modernization of Soviet and Russian models. Over seven decades, the units have experienced thousands of alterations and upgrades.

How it all began

The production of motorcycles in Russia, or rather, in the USSR, began in the late 20s of the last century. Models "IZH" and "PMZ", designed by designer Mozharov, had a heavy stamped frame and a huge engine of 1200 cubic meters, which nevertheless produced only 24 hp. With. At the same time, controllability disappeared already at 60 km / h.

Then, according to one of the versions, third-party developments were used. In pre-war Germany, several models of the BMW R-71 motorcycle and drawings for them were purchased. According to the second version, the motorcycles were shipped from Sweden. Having dismantled and modified German cars to fit Soviet realities, the devices began to be produced at the Moscow and Gorky plants. During the war, production was evacuated to Irbit, in the Sverdlovsk region.

Whateverwas, the German R-71 became the progenitor of the serial M-72. The Soviet analogue was not a complete copy of BMW: instead of a single-plate clutch, a double-plate clutch was installed, the tank volume became larger, the gear ratio was increased, which made it possible to more effectively overcome obstacles that are often encountered to this day in our country. We can say that this was the first tuning of the Ural. At that time, not even Ural, but Irbit. Only with the M-62 model did motorcycles acquire their permanent name.

Success story

The Second World War made it clear that motorcycle units have undeniable advantages in military affairs. Mobile motorized carriages could quickly move up to 3 soldiers and a machine gun, perform third-party tasks. For this purpose, the M-72, produced since the 40th year, was excellent.

After the war, the plant received orders for the production of military models, supplemented by a cradle with a PKMB machine gun of caliber 7, 62 or with anti-tank systems instead. Motorcycles for patrols IMZ-8.1233 Solo-DPS, road, rally, tourist (IMZ-8.103-40 "Tourist") were also produced.

Ural's position now

Before the notorious events of the early nineties, about three million devices were produced. After the collapse of the Union, the position of the plant was shaken. The purchasing power of the population fell sharply, factories in the country were closed and sold. Fortunately, the unenviable fate passed the "Ural". Production continued. These were mainly motorcycles with a sidecar (with or without a drive), with a 4-stroke opposed two-cylinder engine with a volume of 745"cubes" and a capacity of 40 "horses", plus 4 gears and reverse.

Since the mid-90s, in the design of the Ural motorcycle, almost all parts have been improved or replaced with new ones. In honor of the 70th anniversary of the plant in Irbit, modernized models were produced, one of the best is the Ural motorcycle in M70 Sidecar tuning.

The sale of models made in Russia, and not in the USSR, is aimed at foreign countries. 97% of all models of the plant are sold in the USA, Europe, Canada, Australia. Asia is considered as one of the promising markets: Japan and Korea. In these countries, there are simply no competitors in the niche of motorcycles with a sidecar, but there is a demand. China, as a sales market, has been producing a replica of the M-72 under the guise of a copy of BMW since the 50s.

"Ural" - Soviet Harley

This is the only domestically produced two-wheeled vehicle worthy of being considered a Harley replacement. Of course, this is loudly said, but tuning for the Ural motorcycle is presented in such a wide range that you are amazed. A real Ural fan goes through a difficult path before buying a brand new device for 300,000 rubles. It starts with a model released before '94. As a rule, this is a repainted unit, with a cradle cut out. There is no need to talk about competent tuning. Rural areas don't need more

Experienced masters take on more difficult work. Soundly digest the frame, put a Japanese fork, change the landing, polish and paint the engine, attach new fenders and an enlarged tank, even do tuningsidecars of the Ural motorcycle - all this requires experience.

Types of tuning

Such manipulations are usually performed in garage conditions. Do-it-yourself tuning of the Ural motorcycle is divided into internal and external. In the first case, we are talking about working on the engine, forcing, manipulating the carburetor, fuel supply, exhaust system, suspension.

External, respectively, works on the perception of the device by others. This includes painting, polishing, and adding / changing parts, instruments, optics, wings, fairings. It is elementary to put wheels of a larger radius, for example, from Moskvich. But this will recalculate the load on the axle, hub and brakes.

Engine

Ideally, you should start tuning the Ural motorcycle engine. This is the main part of the car. It determines the modernization and frame, and suspension, and fit.

The engine can be forced. But! Firstly, only a highly qualified specialist with machine tools can carry out work on changing the design of the engine.

Secondly, the experience of forcing the engines of the M-63, M-66, 67 and M-63K models showed that this leads to an increase in the maximum torque in the high-speed zone. The characteristics of the resulting unit will be optimal for rally racing.

Thirdly, the tuning of the Ural motorcycle is carried out on a new engine or on an engine after a major overhaul.

Fourthly, for boosting, the compression ratio should be increased to 8.5, which entails replacing the pistons with"Dnieper" and their specific boring. You should also increase the octane number of gasoline from 93 and above.

Ignition

Following the increase in power and the replacement of pistons, it is desirable to replace the spark plugs. Candles A20 DV and A17 DV from Zhiguli are suitable for Ural. Some craftsmen install an additional candle. This increases engine power at high speeds, reduces consumption and can be a substitute for forcing. But it will be necessary to work on the development of an independent sparking system. At the same time, the air filter is changed, which reduces friction losses during intake.

If the engine is old, then it is advisable to replace the carburetor and install an injector. This can be done with your own hands, or with some help. Tuning a motorcycle "Ural" can be done using injection parts from the VAZ "tens"

At the same time, a new starter is being installed. For IM3, starters from outboard motors "Whirlwind" ST 353, ST 367, ST 369 are suitable. VAZ ones - from 9, 10 and 11 models - are also successfully built into the originals.

Cooling

When increasing the power of the engine, the pistons will require additional heat dissipation. The problem is solved by installing "extra" air intakes. They are made from any sufficiently strong material, even from paint cans. It is important here to fix the intakes well, but not strictly along the axis of the cylinders, but arrange them so as not to limit the possibility of replacing candles on occasion.

Swingarm, timing and mufflers

If the hands reachedto the engine, then another modification included in the tuning of the Ural motorcycle, carried out with your own hands - lightening the flywheel. The problem is solved by boring the existing one. As a result, the weight of the motorcycle and the rev-up time are reduced. Balancing the "new" flywheel is not required if done correctly.

Rama

The frame is fairly easy to digest as the material is mild steel. For tuning pipes are cut off, new ones are welded. Can be extended for new steering wheel. Rear shock absorbers are being installed for a softer landing. They are mounted under the wheels.

An enlarged tank is placed on the new frame. To do this, the glove compartment is removed and the "extra" metal is cut out.

And already at the end of all work with the engine, frame and tank, you can begin to install the seat, fenders, headlights, brake lights and other things. Such is the tuning of the Ural motorcycle.