Tuning a motorcycle IZH "Planet-5" is the dream of numerous boys, which they sometimes begin to realize only in adulthood, when they can afford to purchase a product from the Izhevsk Motor Plant. Then you can do the "Planet-5" closely. Such "operations" are joined by their children and grandchildren, male and sometimes female, joining the amazing and mysterious world of motorcycling.
Motorcycle Planet 5
The Planet 5 motorcycle, whose production began in 1985 and completed in 2008, is remarkably tunable. Often carry out tuning of the exterior, some units or main components. To make the fifth "Planet" more playful and passable (to actually remake the Planet-5 IL into a cross-country motorcycle), the excess is removed from the frame in order to reduce the 180-kg weight in the equipped form of the motorcycle. Then, for its best performance, long-stroke shock absorbers are put on the rear wheel and the front fork is replaced. You can rearrange it with a motorcycle "Java" with enhanced travel. Naturally, the wings also change.
In the engine, cardinal changes are not carried out. To increase the resource of the crankshaft, native bearings are changed from the secondary shaft to “Javascript”. The quality and increase of the resource make up for the high cost of these bearings.
For a motorcycle IZH "Planet-5" engine tuning is also an increase in cylinder volume. For this, cut off its top, the sleeve is bored to 76 millimeters. Under this size, the piston from the Planet Sport will freely stand. After these modifications, the prototype of the modernized Planet 5 will reach speeds of up to 160 kilometers instead of its 120 kilometers per hour. By the way, at the test bench, the engine developed a power of 42 hp. at 5950 rpm. But with any forcing of the motor, its resource is reduced. Such changes should not be made on a motorcycle designed for everyday normal riding.
When forcing the motor, the rear standard rubber, clutch and chain may not withstand for a long time. We must think about their modernization.
IZH "Planet-5" clutch tuning
The clutch is standard, it only works reliably under normal conditions. With aggressive driving and with an increase in the loads that occurred after forcing the motor, the load on the disks increases significantly, which can cause them to fail. Experts-experts advise changing one of the disks to a metal one, thickened. This will provide significant compression of the springs, it will not slip, naturally, the clutch will be squeezed harder.
To increase the motor power of the motorcycle IL Planeta-5, the tuning of which is considered in this article, cut the upper edge at the outlet window by cutting one and a half to two millimeters. An indispensable condition is the equal weight of the pistons, and the windows must coincide in the cylinders with the blowdown windows, and do not overlap them in any case. For piston rings, the chamfer must be chamfered. Piston fingers must be lightened by grooving at the end of the cone. Chamfer the end of the fingers too. It will be necessary to bite off the “tails” of the retainers so that the piston pin does not cut them. The cylinder heads must be pinched by cutting their ends on a lathe.
Tuning motorcycle IZH "Planet-5": revision
For refinement, you need to find the crankshaft, which has a needle bearing in the upper part . Such a shaft can be found on the "liquid" "Jupiter". It is interchangeable with other IL models. In the head you need to drill 2 holes with a diameter of 3-3.5 mm, as is done on the "Planet". Established aluminum separators installed at the Izhevsk Motor Plant do not differ in reliability.
After the alterations will have to use AI-92 gasoline.
The photo shows the Izh Planet-5 motorcycle, the tuning of which was made in a truly chic way.