MZ 250 engine - what is worth knowing about it? What bikes has it been used on? What are its technical data?

The turn of the 80s and 90s was a very good period for the MZ company. It was then that mass production of motorcycles equipped with the MZ 250 engine began. The single-cylinder unit, mounted on a frame with a central box profile, performed well in all conditions. MZ ETZ 250 is a motorcycle that won the hearts of many fans of riding on two wheels. These machines have proven themselves well both in everyday driving and on weekend routes. See for yourself that the MZ 250 engines are a combination of functionality, simplicity of design and reliability in one.

MZ 250 engine - what is worth knowing about this design?

Want to know how powerful the MZ 250 engine is? Or are you interested in how this motorcycle drive works? The first engines installed on motorcycles MZ EC 250 and EM 250 were two-stroke. Backwashing is not the only feature of this engine. It is also worth noting the effective air cooling of the drive unit. The beautiful, duralumin and ribbed cylinder is a feature that sets this design apart from all others that were available at the time. Inside the cylinder of the MZ 250 engine there was a cast-iron cylinder liner and a specially designed channel system. In the ETZ 150 engines, it looked similar, although they differed in much less power.

Parameters of this motorcycle assembly

A real treat for fans of old cars is placing the clutch directly on the crankshaft. For a 250cc single-cylinder engine, this guarantees smooth idling without adding gas. The maximum power of the ETZ 250 engine was about 21 hp. At the same time, remember that the maximum torque was 5200 rpm, which gave 27,4 Nm. The use of a motorcycle with an MZ 250 engine required lubrication with a 50:1 mixture of fuel and oil. That is, when refueling in gasoline, it was necessary to add special oil. Otherwise, there was a high risk of engine jamming.

How long does the MZ 250 engine serve? When is an overhaul required?

Do you want to know how much the MZ 250 engine can withstand? With proper operation, this type of construction can withstand a mileage of 40 km. kilometers. This is really a lot, given the fact that these are old engines that did not have technological solutions. After some time, it is necessary to replace the piston, bearings on the shaft, and also regenerate the crankshaft itself. Due to excessive wear of the structure, engine power will also be noticeably lower.

The MZ Tropy, or some other related motorcycle model, was great as a work vehicle. Described by us Even today, a two-stroke engine can last quite a while if kept in top condition. Remember that for the correct operation of the engine from the MZ 250, you need a suitable carburetor and adjustment of the fuel-air mixture. Otherwise, even starting a motorcycle with an MZ 250 engine will be problematic.

Photo. main: Targor Wetton from Wikipedia, CC BY-SA 3.0