Izh Jupiter 5: Technical characteristics of the motorcycle in the Best review

Main advantages

Motorcycles IZH Jupiter -5 were quite simple in design and did not require large maintenance costs. Today there are many who want to criticize this technique without regard to the times, but the model was in great demand among the population. She is not forgotten even now. On the secondary market only, on Avito websites, more than 2,000 units of equipment are offered for sale every day. The main reasons for its popularity are:

Maintainability and simplicity of design.
The presence of a semi-automatic clutch.
Smooth ride, comfortable movement.
Can be used with or without a side trailer.
Good car dynamics without a side trailer.
Durable welded tubular frame.
Reliable and simple gearbox.
Powerful alternator, good light.
Confident engine starting in any weather conditions.

This is not an exhaustive list of the outstanding qualities of the machine.

The motorcycle has the highest level of maintainability. The shortage of spare parts of that time has given way to their abundance today. Any components can be purchased through online stores or in markets at affordable prices. With a small set of tools, a motorcycle of the simplest design can easily be rebuilt on the road. Replacing parts of the cylinder-piston group can be done without any problems directly in the field. More complex repairs involving removal and complete disassembly of the engine are possible in a garage without the involvement of large specialists or special tools.

The motorcycle is equipped with a semi-automatic clutch, which greatly facilitates the driver’s work. Gear shifting is possible without squeezing the clutch lever on the steering wheel. The clutch release mechanism is activated automatically when you press the gear shift foot. Before pressing the foot, it is advisable to release the gas - the switching will occur smoothly, without jerking the transmission. No other domestic motorcycle has such a system.

The machine is characterized by a smooth ride in single mode and with a side trailer. Riding a well-maintained motorcycle is a pleasure. The driver's position is comfortable and ergonomic. The passenger in the side trailer feels comfortable, protected from the flow of oncoming air and dust by a high transparent plastic reflector and a soft, durable awning made of leatherette. The trailer wheel has a spring-hydraulic shock absorber, which effectively absorbs uneven road surfaces.

A motorcycle with the index Izh Jupiter-5K-01 can be used with or without a side trailer. Operation of a motorcycle with a trailer is possible only if there is a corresponding mark in the technical passport when registering with the traffic police. When installing a trailer, the final drive gear ratio is changed by installing a smaller diameter drive sprocket with 16 teeth. At the same time, the engine traction force increases significantly due to an increase in the number of crankshaft revolutions. A 19-tooth drive sprocket is installed on a single motorcycle, increasing the speed capabilities of the motorcycle.

Without a side trailer, the machine has good dynamic capabilities. The two-cylinder engine quickly picks up speed and is capable of accelerating the car from a parking lot to 100 km/h in 12 seconds. This figure is 0.5-1.0 seconds better than that of the most advanced car at that time, the VAZ-2109, or the popular imported Java-350 motorcycle.

The motorcycle is assembled on a durable tubular frame, which is simply impossible to damage if used correctly. The side trailer has its own, no less durable frame, made of thick-walled steel pipes.

The gearbox is assembled in the same housing with the engine and has its own crankcase compartment. The unit is powerful, reliable, always working without problems throughout the entire service life of the motorcycle. There is an inspection hatch on the side cover of the clutch drive mechanism to check the oil level in the clutch housing and gearbox.

Electrical equipment operates from a powerful modern 12 V alternating current generator. Alternating current is converted to direct current by a diode bridge. All old problems associated with the operation of 6-volt DC generators installed on previous machines have been eliminated. The electrical system has become significantly more reliable. The headlight has halogen optics, which produces a fairly powerful stream of light.

The engine starts reliably at any time of the year due to the installation of an emergency start system that supports starting with a weakly charged battery.

Disadvantages and childhood diseases

The car is not without its drawbacks, for which many people do not like it. Most of them manifest themselves as a result of improper operation or overheating of the engine in difficult road conditions. The most annoying are the following disadvantages:

Rapid wear of parts of the cylinder-piston group and crankshafts.
Low resource of chain drive parts.
Uneven operation of the cylinders.
Poor quality connectors of electrical equipment wires.
Imperfect, archaic design of attaching the saddle to the frame.

Wear of the main engine parts causes the most problems for motorcycle owners. Even correct and careful operation is accompanied by early wear of pistons, cylinders, and crankshaft parts. With a new engine, after a run of 15-20 thousand km

extraneous metallic sounds appear, increasing over time. They can be caused by one or more reasons:

Wear of the connecting rod upper head bushing.
Cylinder wear.
Wear of the piston skirt.
The lock falls out of the piston ring groove and is broken.
Destruction of the connecting rod needle bearing on the crankshaft.

These defects can only be eliminated by replacing parts of the next repair size, boring the cylinders and bushings. All of this work, except for replacing the crankshafts, can be performed without removing the engine.

Poor quality chains or inattention to the condition of rubber boots lead to rapid wear of the drive

. At the same time, the drive sprocket wears out just as quickly and must be replaced along with the chain. The rear gear lasts longer and can survive 3 or even 4 chains.

It’s rare that an engine is characterized by perfect uniformity of cylinder operation. The primitive mechanism for adjusting the distribution of fuel mixture flows across the cylinders does not allow precise adjustment of the supply. As a result, each cylinder produces its own torque

.
Although the difference is not great, the load on the crank system is not uniform and balanced. As a result, it works with a skew in the values of the force vectors; the more loaded crankshaft quickly fails. The presence of unevenness can be easily detected by the color of candle soot
. The color of the carbon deposits on the spark plugs should be the same; if there is a significant difference, then this primarily indicates uneven operation of the cylinders. It can be adjusted, but the regular process is poorly managed and laborious.

Electrical wiring is made with low quality wires and connectors

. Cases of contact oxidation or wire breakage as a result of vibration of a loose connection are a widespread phenomenon.

The design of fastening the saddle to the frame has not changed since the appearance of the first IZhs of a similar arrangement in the early 60s. After a short period of use, the lock becomes loose due to vibration, and unpleasant play appears in the joints. Under the saddle there are connectors from the wires going to the optics of the rear flap and to the side trailer. Many owners, forgetting about this, simply tear the wires under the saddle when removing it. The rear wheel cannot be removed without removing the seat.

Design

The motorcycle retained the crew part of the Izh-56 motorcycle, but had a completely new engine - a two-cylinder, two-stroke, with a vertical transverse in-line arrangement of cylinders, air-cooled with a return-loop double-jet purge, with the preparation of the working mixture in the carburetor and its ignition in the cylinder from an electric sparks. The carburetor is closed with special casings (with a metal valve for access during start-up), the air filter is a contact oil filter. The parts of the connecting rod and piston group (piston, connecting rod, piston rings, piston pin, retaining rings, bearing rollers of the lower end of the connecting rod) are unified with the corresponding parts of the K-175 motorcycle engine.

The two-arm foot shift pedal and kickstart pedal are located on the left side of the gearbox housing. Izh-Jupiter, like all subsequent two-cylinder models, was equipped with an automatic clutch release mechanism.

The speedometer drive, unlike the Izh-56, is from the front wheel.

The front sprung mud shield is attached on a cast bracket to the lower bridge of the front fork, which eliminates the possibility of it becoming clogged with dirt.

Modernization

“Izh Jupiter” served as the beginning of a whole series of two-cylinder motorcycles:

"Izh Jupiter-2" (1965-1971) - engine power 19 hp. at 4900 rpm
“Izh Jupiter-3” (1971-1977) - power increased by almost 40 percent compared to its predecessor (25 hp at 5,700 rpm). The model was awarded the USSR State Quality Mark.
"Izh Jupiter-3-01" (1977-1980) - engine power increased to 27 hp.
"Izh Jupiter-3-02" (1979-1981)
"Izh Jupiter-4" (1982-1985) - engine power increased to 28 hp. at 6,200 rpm, torque up to 3.58 kgf m, 12-volt electrical equipment, new lighting equipment.
“Izh Jupiter-5” (IZH 6.113; IZH 6.114) (1985-1988) - engine power reduced to 24 hp. at 4800-5600 rpm, but the torque characteristics in the mid-speed range are improved. An “emergency start” button has appeared, which closes the generator excitation winding to ground, bypassing the voltage regulator, when starting with a dead battery.
“IZH Jupiter-5-01” (IZH 6.113-01; IZH 6.114-01) (since 1988) - the motorcycle received a completely new appearance, unified with IZH Planet 5, released in 1987. The shape of elements such as the fuel tank, tool box lids, seat, and dashboard has been changed. Two cooling fins were added to the engine cylinders, nine instead of seven, the front part of each fin was bent towards the cooling air flow. A wide motor chain was installed, as a result of which the teeth of the motor sprocket and large clutch drum were changed.
“Izh Jupiter-5-03” (Izh 6.113-03; IZh 6.114-03) (since 1993) - the model is equipped with a liquid-cooled engine IZH-Yu5 Sb. 1-08. Fuel consumption is reduced by 1.5-2 liters, noise level is reduced by 30%, engine power is 25 hp.

Comparisons and differences

Jupiter 5

- This is a livelier motorcycle with good throttle response. In terms of comfort, it is head and shoulders above its opponent. The two-cylinder engine is more powerful and faster in speed. According to the passport, the speed is 125 km/h, but it’s realistic to reach 150 km/h only after engine repairs are provided. The ignition is not stable and causes many problems. Fuel consumption is considered high.

Planet 5

- this is a steam locomotive, it has a decent torque, but when you press the throttle it reacts very sluggishly.
Gears are switched with over-throttle. But the traction is head and shoulders above due to its torque, it’s like a tractor. Another difference is the absence of ignition problems
. Repairing it is even easier and cheaper. Fuel consumption is considered low.

Motorcycle appearance

When the Jupiter 5 model came out, its design was already well-known, because it was inherited from the Jupiter 4 motorcycle. But soon the Izh Planet 5 appeared on sale, and the developers saw that they could borrow several design elements.

The first modification had a square-shaped dashboard, which consisted of several indicators, an ignition switch and a speedometer. But soon its appearance was redesigned, and instead of one dashboard there were two. On the first part they placed warning lamps, and on the second part they decided to put a speedometer.

The design of the fuel tank has also been slightly redesigned, with rubber pads on the knees and the shape of the tank itself has become slightly different. Accordingly, in the new modifications of the Moto Izh Jupiter 5, it received a different, longer seat that ended at the brake light. This innovation is still considered stylish and modern.

During the Soviet era, creating high-quality and impressive equipment was as easy as shelling pears, because the country had all the resources for this. Thus, the Izhevsk plant produced a motorcycle that is capable of carrying a load of up to 500 kg. Just imagine what could be carried on this transport!

Being a workhorse, the motorcycle had a fairly sporty appearance and excellent top speed. With a power of 25 hp. the motorcycle could accelerate to 120 km/h. This is a completely standard indicator, because another representative of the Dnepr could give a maximum speed of 110 km/h. In severe frosts down to 30 degrees, the unit started up perfectly, which cannot be said about the current new products. Unfortunately, many owners complain of frequent engine breakdowns due to their long lifespan.

Motorcycle modifications

The basic model had the index IZH 6.113 - 010 - 01, and the version with a side stroller - 6114 - 010 - 01. Lux

"(cradle, spare wheel, toothy tires, fairing, protective arches, trunk) and "
Tourist
" (the same, but without fairing, trunk and arches). Subsequently, the bike was modernized many times, receiving a different carburetor, a disc front brake, and a more energy-intensive fork with pneumatic adjustment. There is also a version with a cargo side trailer, but this is vanishingly rare these days. Jupiter 5 of the transitional model also comes across on sale, but this definition usually hides just one of the early modifications.

Description of design

So, this motorcycle was first shown in 1971.

It was produced in two versions - “IZH Jupiter 3” and “IZH Jupiter 3K”.

They differed in that the “3K” was additionally equipped with a side stroller, but it had the ability to be detached from the motorcycle.

At that time, Jupiter 3 had a modern appearance and was well made, although it was based on its predecessor. All elements of the motorcycle were attached to a tubular frame.

To increase comfort, the front suspension travel was increased and the rear shock absorbers were made softer.

They changed the shape of the tank, it stopped being teardrop-shaped. But the headlight did not change; its housing continued to house the speedometer, ignition switch and warning lamps.

The seat is undivided, double. A rear fender with a brake light, turn signals and a license plate placed on it was attached to the seat body from below.

Turn signals on the IZH Jupiter family began to be installed precisely from the third model.

There were glove compartments under the seat on both sides of the motorcycle, the left one was intended for installing the battery, and the right one was for storing keys.

The engine was located under the tank, which ensured that fuel flowed into the carburetor by gravity. To prevent spontaneous leakage of gasoline, a tap was placed on the tank.

The cylinders had an in-line arrangement. When designing a new engine for this motorcycle, the position of the cylinder fins was revised, which subsequently ensured better cooling.

One elbow came out of each of the cylinders, to which two exhaust pipes were screwed, mounted on the sides of the motorcycle under the footpegs.

The power system consisted of a single carburetor located behind the cylinders and connected to them by a pipe with a double outlet. In the base, the motorcycle came with protective covers covering the carburetor.

By reworking the engine, the designers managed to increase its power by 6 hp, which affected the speed; it increased to 120 km/h.

The gearbox was made integral with the engine. Torque was transmitted via a multi-plate clutch. The drive to the rear wheel was carried out by a chain.

The rear drive sprocket was housed in an aluminum housing.

The front suspension was made in the form of a telescopic fork, and the rear suspension was a pendulum with two shock absorbers.

The brakes on both wheels are mechanically driven drums.

At one time, this motorcycle was awarded the State Quality Mark because it was reliable, easy to repair, and easy to start, compared to the IZH Planet.

Its only weak point was the contact ignition system. It practically consisted of two contact systems, one for each cylinder.

This affected the convenience of installing the ignition; it was difficult to achieve the same advance angle on the cylinders.

Engine diagnostics and repair

It is sometimes impossible to find the cause of a breakdown after one visual inspection. In some cases, complete disassembly of the IZH Jupiter 5 engine is necessary. But if you find out the reason, you can quickly solve the problem yourself. Here are examples of main faults and repair recommendations:

If your kickstarter turns on the crankshaft, you must:
If the oil is selected incorrectly, especially if it is very viscous in winter, it is necessary to select a more correct temperature regime.
If the trigger spring is weakened, it must be replaced.
If no fuel gets into the carburetor, you should clean it in a solvent, and also blow out the channels and fuel supply hose with pressurized air.
If there is no spark in the combustion chamber, replace the spark plug or clean it.
When the throttle valve sticks, it is necessary to adjust its drive and clean the carburetor.
If the engine is unstable or does not start the first time, it is worth checking:
Is the capacitor OK? If strong sparking occurs between the contacts, the capacitor must be replaced.
Severe wear or burning of the spark plug. In most cases, it is the spark plugs that cause poor starting and uneven engine operation.

These are the main problems that may occur during operation. How to disassemble the IZ Jupiter 5 engine is written in detail in the maintenance book issued upon purchase. Everything stated in it is written in clear text, with diagrams and detailed instructions.

Not only the repair of a Soviet unit is within the power of any owner.

There are many questions about how to assemble the IZH Jupiter 5 engine yourself, modifying it. For example, installing a more reliable carburetor or a more stylish and loud muffler can be done quickly enough without significant financial investments.

Tuning an IZH Jupiter engine with your own hands is possible if you have enough time and enthusiasm. You just need to be persistent.

The motorcycle has a favorable ratio of cost, build quality and maintenance requirements. An ideal option for people with a small budget and those who want to get universal equipment. However, frequent breakdowns will take a lot of time. It's worth being prepared for this, since some bikes can be 40-50 years old.

Main problems and their solutions

Disassembling the IZ Jupiter 5 engine, the video of which is presented below, is carried out not only as problems arise, but also for preventive purposes. For example, cleaning the carburetor is one of the conditions for maintaining stable engine operation.

The IZ Jupiter 5 engine diagram is simple even for inexperienced motorists. Therefore, during repairs there will be no difficult issues. In most cases, breakdowns occur due to the negligence of owners who improperly operate the moped and do not perform regular maintenance. For example, incorrect selection of oil for a particular time of year. So, if any part wears out, it must be replaced.

Spark plug.
Cylinder head of a motorcycle engine.
Motorcycle engine cylinder.
Exhaust system window.
Cylinder piston.
Cylinder piston ring.
Bypass system channel.
Motorcycle piston pin.
Crankshaft connecting rod.
The left half of the engine crankcase.
Leading star.
Left crankshaft axle shaft.
Clutch system spring.
Adjustment type screw.
Pressure clutch disc.
Pedal on the gearbox (gearbox).
Starting pedal.
Clutch discs.
Gearbox fork.
Half of the engine crankcase is right.
Cylinder head of a motorcycle engine.
Motorcycle engine cylinder.
Motor flywheel.
Cover of the crank chamber of the Izh Jupiter 5 engine.
Motorcycle generator.
Moto breaker cam.
Gearbox gears.
Gearbox gears.
Cam for automatically turning on/off the clutch mechanism.

Planet 5

It was also produced by the Izhevsk Machine-Building Plant from 1987 to 2008.

Main advantages:

The engine is “high-torque” Planet 5 is compared to a tractor, it has such good engine traction.
No ignition problems.
Not high fuel consumption.
Compared to Jupiter 5, repairs are even easier.

Characteristics:

Weight - 158-165 kg
Engine – two-stroke single-cylinder, 22 hp.
Cooling is air.
The maximum speed is 120 km/h.
Fuel consumption is 5-6 liters.

Main disadvantages:

Starter kickback to the leg. There were cases when a foot was broken.
Unpleasant vibration. It's like sitting on a massager.
Sound when working. It looks like it's about to fall apart.

Now both motorcycles can be bought on the market, the cost ranges from 5 to 50 thousand rubles. Both models were produced in limited quantities with water cooling; they are now more difficult to obtain. Liquid cooling reduces fuel consumption and reduces noise levels.

What common

These are motorcycles that were a good help in the household. The cost in Soviet times was around 1000 rubles. Every adult resident of the union could afford them. Both models were intended for movement on all types of roads and off-road. They deservedly enjoyed it and are popular among motorcyclists.

Externally, both devices are very similar. The devices are simple and reliable to use. You can repair them yourself. It is possible to attach a cargo or passenger side trailer. The models were designed as an alternative to passenger cars. It should be noted that the designer completed the task. In terms of chassis, cladding and parameters, they are not very different. The main difference is the engine design. Both motorcycles were upgraded many times during production. They have several types of configurations.

Structural nuances

It is worth noting that the model from the designers of the Izhevsk Machine-Building Plant was at one time considered one of the most modern. The developers introduced a new body into the modification, modernized the engine and implemented the best developments in the field of creating two-cylinder “iron horses”.

Considering that a completely new anti-vibration system and a fundamentally different fuel tank configuration were mounted on the old frame, the bike in question became a real breakthrough in the segment of domestic two-wheeled motorized equipment. A more powerful multi-disc clutch can also be considered an advantage of the model.

The Izh Jupiter-4 vehicle, the characteristics of which are given above, has received an updated shock absorption system and electronic equipment. The last node is very similar to the analogue used in the legendary sports version “Planet-Sport”. It is from this variation that the battery and most other elements related to electrical equipment, including the generator and coil, were borrowed.

What is best, when and for whom

Having done a little analysis of these two models. It became clear that it would not be possible to clearly identify the best. Because some people like speed, while others prefer reliability. Some people put comfort first, others put fuel consumption first. Everyone exploited their “iron horses” in different ways and looked after them differently.

After conducting a survey, opinions were divided; rural residents gave preference to Planet 5. And residents of cities and urban-type settlements gave preference to Jupiter 5.

Villagers preferred Planet 5 because it was a workhorse. Bring, take, go fishing, hunting is ideal for Planet 5. Jupiter 5 was preferred by people who need transport once a week, for example, to go to the country.

I would like to note that these models are in demand and are still relevant today. On average for 20 thousand rubles. You can buy a motorcycle that will be in good working condition. There are no problems with spare parts. Both native and Chinese analogues are available for sale. There are no motorcycles on the market with similar characteristics and there won’t be in the near future.

IZH-1 - the first motorcycle of the Izhevsk Motorcycle Plant (9 photos)

On December 4, 1928, the first samples of domestic motorcycles, named Izh-1, came out of pilot production in Izhevsk (now OJSC Izhevsk Motorcycles).

See all photos in the gallery

At the end of the 20s, the Avtodor council sent P.V. Mozharov on a business trip to foreign factories. From there he brought several German motorcycles of different brands, instruments and tools.

Petr Vladimirovich Mozharov

At the same time, Avtodor purchased 14 well-proven English and American motorcycles, gave them bench tests and tested them (the then famous tester S.I. Karzinkin was involved in this matter) in the 1st All-Union Motorcycle Rally in 1928.

Leningrad engineers with L-300 (far right - Mozharov)

Mozharov, who took part in it on a German Neander, pleased the riders and spectators with the words: “... a Soviet motorcycle has already been designed, suitable for riding on our roads. Now the Izhevsk plant has started assembling such machines, by spring the first three prototypes will be ready, which we will probably present for the next motorcycle rally, and then Ruzhpultrest will begin their mass production.”

Indeed, in the fall of the same year, several experimental motorcycles began to be designed and built in Izhevsk. However, not everything went smoothly, and for the start of the 2nd All-Union Motor Ride, only IZH-1 was prepared (I. Shchedrin’s team of mechanics completed training on September 17, 1929), IZH-2 and IZH-3, and two more “IZH-4” and “IZH-5” were getting ready, but they were hopelessly late for the start.

So they were sent on the run untested, with unadjusted carburetors... Nevertheless, all five successfully completed the 3,300-kilometer route and finished in Moscow.” IZH-1 and IZH-2 were almost identical, equipped with four-stroke, two-cylinder, V-shaped engines with a displacement of 1200 cm3, maximum power of 24 hp. With. at 3000 rpm.

Magneto ignition. The engine was located across the frame. The gearbox had three stages. Drive to the rear wheel is by cardan shaft. The wheel of the side trailer (sidecar) was also driven, so the cars walked confidently off-road; 23 liters of fuel in the gas tank was enough for 300 km, the maximum speed reached 65 km/h. The front fork is parallelogram.

The motorcycle is based on a stamped frame made of two solid trusses. The lower part of the frame also served as a muffler housing - this feature was characteristic of all five motorcycles of the first series. It was an impressive car in terms of weight and dimensions with a two-cylinder four-stroke V-twin engine with a displacement of 1200 cubic meters. cm and maximum power of 24 hp.

The engine crankshaft was located longitudinally, torque was transmitted to the rear wheel from a three-speed gearbox, mounted in a block with the engine and driveshaft. The machine was intended for operation with both passenger and cargo trailers. The power reserve ensured the ability to drive on the most difficult roads.

Characteristic:

Engine displacement is 1200 cm3. Number of power strokes – 4. Number of cylinders – 2. Number of gears – 3. Reverse gear – cardan shaft. The fork is parallelogram. Wheelbase, mm – 1400 Ground clearance, mm – 120. Weight without side trailer, kg – 300.

The vehicle was intended for operation with both passenger and cargo trailers. The power reserve ensured the ability to drive on the most difficult roads.

Technical characteristics of Izh Jupiter 5

In general, the characteristics of the Izh Jupiter 5 motorcycle corresponded to its time. But in the 2000s, when it continued to be produced, it could no longer compete with imported models. The Chinese had already flooded the market with budget, but still more modern models, and a flood of used motorcycles poured from Japan, Europe and the USA. The characteristics of the Izh Yu5 engine were not bad, but everything else was hopelessly outdated a couple of decades ago.

Engine

The technical characteristics of the engine are not amazing - two cylinders, 347 cubic meters. There is enough horsepower, as much as 24, torque - 34 Nm. Compared to the previous generation, the engine lost 4 hp, but gained torque, and there was also noticeably more thrust at the bottom, so in general the characteristics of the Izh Jupiter 5 became more balanced. But the engine remained two-stroke, and the gas tank must be filled with oil mixed with gasoline in a ratio of 1 to 25. But it can easily digest even AI-76, not to mention AI-80. The declared maximum speed is 125 km/h, and it can be achieved on Jupiter without a stroller. And if you look at the engine in cross-section, it turns out that it subtly resembles all the engines at once that were ever produced at the Izhevsk Motor Plant.

Transmission

Standard 4-speed transmission, where first gear is downshifted and all others are upshifted. It has never been reliable, but thanks to its high maintainability and availability of spare parts, Soviet motorcyclists quickly learned how to solve problems on their own. Some garage craftsmen even completely rebuilt the transmission, adding a fifth gear to the bike, but these were custom ones.

Chassis and brakes

The chassis was developed back in the 70s, if not earlier, and in Jupiter 5 it has remained virtually unchanged. A conventional steel frame with a telescopic fork in front and ancient shock absorbers a la “candle” in the rear, plus drum brakes on both wheels. The effectiveness of the suspension and braking system was mediocre even for its time, but they also had a significant advantage - endurance and maintainability. On modern motorcycles (except perhaps enduro), oil from the fork quickly begins to leak on rural dirt roads, and Izh Yu5, it seems, can ride without it at all. But we still do not recommend testing this in practice.

Electronics

The fifth generation Jupiter does not have the same electrical problems that the fourth had. In fact, this model is the same Jupiter 4, but with a number of corrected shortcomings, such as regular wiring problems. Gasoline consumption has also become lower thanks to a redesigned ignition. In general, the electrical circuit has changed slightly, but the weak points that regularly served as a source of headaches for owners have been removed.

Weight and dimensions

The dimensions of the bike can be called average, as well as its weight. How much does Izh Jupiter 5 weigh? By modern standards - quite a lot, about 160 kg, and this is only dry weight. But the motorcycle engine is located low, so the center of gravity is also shifted down. The relatively large weight is due to the fact that in the USSR they did not skimp on hardware, and plastic elements were practically not used. If something can be made from iron, it must be made from iron! That is why the weight of the Izh Jupiter 5 engine is about a quarter of its total mass, if we consider the specimen without a sidecar.

Controllability

This mastodon handles mediocrely, not least because of the ancient design, and with a stroller the handling becomes even worse. But the cradles for Izh Jupiter 5 were also produced separately, so if you don’t need it, you can always disconnect it. But don't forget about the weak brakes, which are not enough to effectively stop a massive bike. On the other hand, the Izh stroller is good because you can load a lot of spare parts and other goods into it when going on a long trip, since its volume allows this.