How to do tuning Izh planet 3. We do tuning of an Izh motorcycle with our own hands. Change your appearance

• January 16, 2012

Useful

Increase the engine capacity of the Izh-Jupiter to 400 cubic meters. cm is possible if you install pistons from the Owl-200 into it. In principle, this is not difficult to do, if not for two “plugs” with an “owl” piston. First: the distance from the finger to the bottom is 5 mm less than that of the Jupiter. Second: there is a “hole” in the piston with a “petal” for purging.

The first mismatch was easily eliminated: I removed excess metal from the cylinder jacket on a lathe so that the cylinder “sits” 5 mm. I had to tinker with the “holes” - I gave them to a specialist to weld. But first I bored out the cylinders for the pistons. Then I found old “Jupiter” pistons (of course, it is better to use “owl”) and cut plugs from their skirts of the same diameter as the holes in the parts being welded.

I removed large chamfers on both sides of the holes in the pistons and plugs and inserted the plugs. Welding in argon was carried out at the factory: the pistons were scalded both outside and inside. I processed the welded pistons by hand - I carefully peeled off the outer seams with a file and sandpaper. Then he adjusted the pistons directly onto the bored cylinders and removed the excess with sandpaper. I spent the season with this piston engine: modifications increased dynamics and top speed.

Boosting the IZH PLANET engine

We do tuning of the Izh Planet engine

You can often hear: “Izh Planet cannot be forced.” This is wrong! The planet, although it is tight, is still being forced.
The main thing is that your hands grow from the right place, and there is a little ingenuity in your head. And everything will work out.

Let's consider the change in power of single-cylinder engines with a volume of 350 cm3 produced in Izhevsk. Take, for example, IZH-49 (the same Planet): the engine power is approximately 12 hp. Izh Planeta 3 already has 20 hp.

Further (For example,
P5
) there is even more. The main advantages of the Planet are the simplicity and reliability of the design, ease of repair, and good traction at low speeds. Of course, you cannot achieve the same result as with tuning Jupiter, but still...

Before boosting the Izh Planet engine

, it is necessary to remember that the engine must be in full working order. The main thing that can give an increase in power is, of course, the cylinder-piston group and exhaust system.

The cylinder must be free of scratches, nicks and other damage. The threads must also be undamaged. Replace damaged studs, clean the threads in the head for the spark plug and the decompressor with the threaded part cut lengthwise. The bypass channels in the crankcase and the cylinder must completely coincide; the gaskets must not block the cross-sections of the channels. Irregularities in the bypass channels must be removed and, if necessary, sealed with MS-2000. Polish the channels until they shine. Also polish the inside of the plug. After polishing, install paronite gaskets under the plugs of the bypass channels and firmly tighten the screws securing the plugs (6 pieces). The use of sealant is not recommended. The windows (both inlet and outlet) should also be polished, having previously removed any irregularities.

To increase power by increasing the crankshaft speed, you can raise the edge of the exhaust port by a couple of millimeters. To reduce carbon formation, you need to polish the bottom of the piston to a shine, and remove casting flaws in the inner part that create resistance to the fresh mixture.

When is the Izh Planet engine boosted

more seriously, you can try to lighten the piston, but only if the arms grow from the right place. This will make it easier for the engine to spin up and reduce engine power loss. Calculations are necessary, since a change in mass can lead to a decrease in piston rigidity. Under no circumstances should the stiffeners be removed.

The piston pin can be lightened by grinding off the metal at the ends of the pin.

It is also possible to produce needle bearings.

Also to improve the performance of the Planet engine

The crankshaft needs to be rebuilt a bit.
On the standard Izh Planet, the connecting rod
has an I-beam shape. To reduce the resistance of the fuel mixture, to lighten the connecting rod, and also to improve lubrication, you need to remove the ribs, bringing the shape to a saber shape.

After this, the connecting rod must be polished. There is no need to be afraid of deformation of the connecting rod, as there will be a margin of safety. But connecting rod failure is possible if the engine seizes at high speeds. But a good owner with good hands will never jam the engine. It is necessary to polish both the walls of the crankshaft chamber and the crankshaft cheeks.

It is possible to improve dynamics by reducing the mass of the crankshaft, but again only after calculations. But after reducing the mass of the crankshaft, low-end traction will worsen and idle speed will increase. The same applies to raising the upper edge of the exhaust window. The crankshaft main bearings should rotate easily, without jamming, and should have virtually no play. This also applies to other bearings, since tight bearings waste engine energy. Finding good bearings is not very easy these days. It is advisable to use high-precision ones. After modifications, the crankshaft must be balanced.

The importance of reducing the volume of the crank chamber should not be underestimated. Due to the reduction in volume, the pressure of the fuel mixture will increase, which will improve the filling of the cylinders and increase power. True, this is no longer easy; the crank chamber and crankshaft will need to be reworked, and this is already a lot of work.

The cylinder head must not be damaged. The threads for the spark plug and decompressor should also not be damaged. If there is damage at the joint, it needs to be ground down a little on an abrasive wheel. If necessary, do the same with the cylinder, first unscrewing the studs. It is not necessary to use copper or aluminum gaskets, since the connection may leak where the gasket and the cylinder or head come into contact. If the gasket is on the Planet

It's factory, which means it's an attempt to hide the defect.

The head can be tightened, bringing the compression ratio to 9-9.3. After increasing the compression ratio, only 2T oils are allowed to be used (usually MGD-14M is used). It is advisable to use imported candles (the main thing is not to run into leftist ones like VOSH or BOCH).

Polish the inner surface of the head to a shine, which will reduce carbon formation. To avoid distortion, tighten the head fasteners crosswise.

Further boost of Izh Planet

This is installing the “correct” carburetor.

It is recommended to install the carburetor K-68I. Polish the inner surface of the channel. Also polish the throttle and needle. You can experiment with the diameter of the jets and achieve better results. All information about this can be found on this site.

A paper air filter must be installed, since an oil filter does not provide the required degree of air purification. You can use a filter from IZH-Planet Sport.

Approximate cost

Although the production of Jupiter 3 has long been completed, it can still be purchased, but only on the secondary market and often already somewhat altered.

Additionally, it can be noted that this motorcycle can serve as a good start for lovers of modifications and tuning .

This motorcycle is very cheap; it is offered on the secondary market at prices ranging from 7 to 19 thousand rubles.

Despite the rather advanced age of the Kawasaki GPZ 900 R, it is a cult superbike with a huge number of admirers and fans, which speaks of its quality and unique characteristics.

Now, if this motorcycle is properly equipped with an aerodynamic body kit, you can try to overcome the 200 km/h mark.

Tuning the IZH Planet 5 engine for those who love their IZH

The IZH Planet engine lends itself perfectly to various kinds of modifications, and all in order to increase the power of our bike. Therefore, the issue of tuning the IZH Planet 5 engine is very acute.

But what is the best way to start tuning the IZH Planet 5 engine? And you need to start by repressing the crankshaft. It is necessary to replace the crankshaft main bearings with secondary shaft bearings from Java, this will increase the service life of this unit.

Next, in order to increase the working volume of the cylinder, it is necessary to cut off the upper part of the cylinder and bore the liner to 76 mm. A piston from IZH Planet Sport is perfect for this. After tuning the engine, Planet 5 will be able to drive 160 km/h. True, it will be a little scary to drive so fast on such a trough, but still.

A tuned engine will not be able to work with the basic clutch, especially the clutch disc and rear rubber. And this is understandable, because the loads will become higher, and the standard clutch is designed for standard loads. So you need to pull out the discs and replace them with thicker metal discs, this will prevent slipping. The heavier clutch will be offset by increased power and new capabilities.

As an option, when tuning IZH Planet 5, some craftsmen install supercharging, but this is a more complex job, we will talk about it later. In addition, we must remember that a new air filter will better clean the air, because improved air purification will affect the increase in power. Therefore, it is necessary to replace the standard air filter with one of the imported analogues.

Specifications

The detailed characteristics of this motorcycle are summarized in the table:

Turbocharging on IZH Planet 5

Now let's move on to the almost impossible - putting 5 turbocharging on the Planet. First you will have to find out what the pump capacity is; in most cases it is 1750 l/min. That is why it is necessary to install a boost driven by the crankshaft, and the inflatable pump must have an impeller speed of at least 10,000 rpm.

When tuning the IZH Planet Sport engine, the exhaust resonator can be of great help to us, as it creates a back-up of the combustible mixture in the form of a resonant wave. And with the help of a slide valve, asymmetrical phases of motor operation will be obtained. To avoid possible problems, it is necessary to install fuel injection. The purging phase will be reduced so much that only the required amount of air will get there.

When tuning the IZH Planet 5 engine, piston lubrication is very useful to reduce friction. Particular load will be placed on the connecting rod roller bearing. The engine chain and crankshaft will not be balanced if the engine chain is slack, so it must be replaced. Under heavy loads, the clutch will not work as usual, which is why it is necessary to ensure that the textolite discs are without damage, and that there is no warping on the metal discs. If you have experience and hands, then you can make the IZH Planet 5 motorcycle very nimble. By the way, Java motorcycles are also great for tuning.

And here is a video about a small tuning of IZH Planet 5:

Source

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 sidecar , 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.

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 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 . 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.

The Kawasaki Versys 650 will be an excellent companion on long trips; you will find its technical characteristics in our review.

The bike that received the status of a “legendary” motorcycle:

Owner reviews

As a child, I drove a P3 around the village, although at the time I thought it was a P4, I only found out later. There were no documents)) It was the first moto in my life, I rode well, Voskhody and Minsk could not keep up. Dmitry, Zheleznogorsk.

Because of nostalgic memories, in 2021 I bought a third Planet for restoration, for 20k, with documents. In a few years of leisurely work, I did everything, sandblasted the frame, repainted everything, threw out the entire collective farm and replaced everything with the original. Now the only new carburetor is a Japanese one instead of the original one, but there are plans to change it too. For me this is a weekend bike, ride on a warm evening and remember your youth. Gregory, Lyubertsy.

The moth is tenacious and will survive a nuclear war if necessary. It can be repaired with a file and a hammer, many spare parts are suitable for u3, u5 and p5. If you need timeless equipment that will always run, and there is no fear of getting your hands dirty, this is an excellent option. Anatoly, Kursk.

Where to begin?

Owners of foreign brands of motorcycles always have the opportunity to use a catalog with ready-made tuning solutions. Those motorcyclists who purchased Planet-5 should roll up their sleeves and update their car themselves, using their experience and technical skills.

Most often, the owners of Planet-5 change the appearance, main components and some assemblies. Many owners begin tuning an IZH motorcycle by converting the muffler

.

Installing chrome “cans” will give the motorcycle solidity, but will make the engine heavier. In order to make the motorcycle lighter, you should remove from the frame all parts that make the structure heavier. To improve rear wheel travel

You can install long-stroke shock absorbers. Be sure to perform alignment and balancing.

Design and reliability

IZH Planet 2, as evidenced by the number in the model name, became the second motorcycle in the Izhevsk Planet series.

It differs from the “ancestor” of the family in greater comfort and power of the power unit , as well as an updated, more modern (for that period of time) design.

Thus, Planet 2 received a signature paint job, a muffler and wheel rims covered with decorative chrome, a polished crankcase cover, as well as brake covers and a carburetor casing with a layer of hammer enamel.

The motorcycle seat has become wider and more comfortable. Its finishing is made of colored textinite.

The second generation model is designed in such a way that its repair does not require special or specific tools , conditions or equipment.

The mechanics are quite simple and straightforward , and spare parts are produced in abundance.

IZh Planet 2 owes its excellent cross-country characteristics to good traction at low speeds, high suspension and competent gearbox design.

Among other things, the owners of the bike unanimously declare the highest reliability of the engine and its amazing durability. This is confirmed by the manufacturer, who provided a warranty for a mileage of 15 thousand kilometers or a year and a half of operation.

Specifications

The middle class of the IZH Planet 2 model is confirmed by both the engine characteristics and the overall dimensions of the bike, which are:

The dry weight of the motorcycle is 155 kilograms, and the wheel size is 3.25-19.

Design features

At one time, IZH Planet 2 had very modern parameters.

The “heart” of the motorcycle was a two-stroke single-cylinder 346 cc air-cooled engine , the power of which reached 15 horsepower (4.2-4.6 thousand rpm).

This unit runs on a fuel mixture of gasoline and oil, which comes by gravity from an 18-liter tank.

Braking system - drum . The gearbox is a two-way, four-speed design that transmits rotation to the rear wheel via a chain.

The softness of movement is ensured by the original shock absorption system:

As already mentioned, the Planet 2 frame is an all-metal tubular structure.

The deep fenders of the motorcycle are also made of metal, since plastic was practically not used then.

Detailed information about the IZH Planet 2 power unit can be found in the following table.

One of the most remarkable models of the domestic motorcycle industry is IZH Junker, review and characteristics of the model.

The model of this domestic motorcycle was developed in 1974, and at that time it was a unique concept.

The motorcycle sat in this barn for 38 years.

0 The stroller was stored upside down: so as not to take up a lot of space.
At one time, the state allocated this device to one forester in the Cherkasy region - to go around forestry areas. However, for these purposes he already had an older Izh Jupiter-2 in good condition, so the man decided to save the new equipment for better times and locked it in a dry barn for many years. They didn’t even register him with the traffic police!

The motorcycle remained in this barn until 2014, when the owner’s grandson finally decided to get Soviet equipment out of the rubble, which had already become a rarity in 38 years. And especially in this condition!

The mileage on the speedometer is 3 kilometers, and it is recorded in the accompanying documentation that came with the motorcycle. He also drove these kilometers around the factory testing ground: a test run to identify defects and assembly defects.

Appearance

Despite the fact that IZH Planeta-5 is one of the best examples of domestic production in terms of design, it still differs unfavorably from foreign motorcycles. To change the appearance of the Planet for the better, you can take the following actions:

1. Install double-sided bars - in case of a fall, they will protect the driver and protect the motorcycle from serious damage.
2. Install xenon. This will not only help in illuminating the track, but will make the motorcycle more visible and, as a result, increase the safety of the driver.
3. Not all modifications of IZH Planet-5 have knee pads. In order to close the holes that form the safety arches, two shields should be cut out of light tin or durable plastic. This change will reduce dirt on the engine and rider and improve the appearance of the motorcycle.
4. Replace factory turn signals. In its original configuration, IZH Planet-5 has rather inconspicuous round turn signals; they can be replaced with more modern rectangular ones.
5. Replace the windshield. Thanks to this, the motorcycle will literally be transformed.
6. Raising the rear of the motorcycle and the front fender slightly will give the Planet a more sporty look.
7. Change tires to more modern ones.

All of the above will radically change the appearance of the Planet. Only you can decide what your bike will look like. When tuning an IZH 5 motorcycle, you can choose which parts of the original design you want to replace and which ones you want to leave.