history of motorcycle development has its roots in the distant 1885, when the famous German engineer Gottlieb Daimler built the simplest microcar, a motor equipped with a small kerosene.The frame and the wheels of the first motorcycle was wooden, and its rate was barely 12 kilometers per hour.
motorcycles in the Soviet Union began in the early thirties, and, in fact, they have been copied from the German counterparts.Domestic motorcycle IL-350 is an exact copy of the German DKW NZ-350, other models Kiev factory settings repeated Wanderer, the German motorcycle manufactured Concern BMW.
Start of Motorcycle
K-750 - is the first model, which started production of two-wheeled vehicles.The weight of the entire structure is 318 kg, engine displacement of 745 cc / cm developed capacity of 25 liters.from.The bike was equipped with four-speed transmission, the rotation of the drive wheel transmitted via the propeller shaft, which provides enough smooth ride.
brake system consists of two robust drum mechanisms with flexible cable drives.Dvadtsatilitrovy fuel tank allows the distance of 350 kilometers without refueling.Fuel consumption at the same time is not more than 6 liters per 100 kilometers.Motorcycle K-750 from the start of production was considered a successful development that did not require any changes to the design.Well-designed units and components interact smoothly, and their layout makes it easy to make all the necessary adjustments that are required during operation.
At its reliability motorcycle K-750 is far ahead of its predecessor M-72 and the German prototype Wanderer hopelessly behind him on the cross and acceleration dynamics.Pickup two-cylinder engine with horizontally opposed pistons located in hundredths of a second is gaining momentum, with difficulty restraining power.26 horsepower more than enough for overclocking, and many hours of travel.Motorcycle "Dnepr K-750" - a modification of the base model, a more economical and fast - enjoyed high demand and delivered to military units.
prams additional drive wheels provide excellent maneuverability and unparalleled smooth running.In the sixties of the last century the motorcycle K-750 became the most popular means of transport throughout the territory of the USSR.Over the entire period of production - from 1959 to 1967 - it was issued more than 100 thousand motorcycles and later modifies the K-750 in large lots.
K-750 with a sidecar developed a speed of 90 kilometers per hour.Smooth progress was achieved by rubber springs set for sidecar in three locations, as well as by hydraulic shock absorbers on all four wheels.Essential in the production of K-750 had it almost wholly with the unification of units and units of motorcycles manufactured in the Irbit factory.Conveyor Kiev factory did not stop even for a minute, driving up the spare time by rail.While marketing as such was not yet working smoothly supplying the Soviet structure.
Modernization
After a while model K-750 was upgraded and became known as the K-750m.There was a significant difference.The front linkage plug replaced by a telescopic, more modern.Install a new transmission with kick-switching mechanism gated upgraded propeller shaft can be adjusted in length.
Further improvement of the bike for the engine, nizhneklapannym whose design did not allow to increase the capacity by increasing the combustion chamber.The design of the motor has been changed dramatically, valves moved upward, the volume of the cylinder at the same time remains the same, and the engine power increased to 32 liters.from.Ensure stable power 5200 rpm, which is a relatively low figure.
same time was increased durability and reliability of the engine.Extra replaced the solid-cast crankshaft, connecting rod roller bearings changed to babbitovye vladyshi of "Moskvich-407".Resource crank assembly has increased to 40 thousand kilometers, and has become much easier to repair, replace liners as the next repair size easy enough.In the process of modernization of the engine pistons added two oil ring.Later, cylinder heads were replaced, new steel over ribbed, increased cooling capacity.The result is a powerful, efficient engine.Motorcycle K-750 has become faster and more maneuverable.
motorcycle speed increased to 105 kilometers per hour.Fuel consumption decreased by 200 Grama and 5.8 liters per hundred kilometers at a speed of 60 km / h.Cost motor became stable, constant, thanks to the self-ignition timing system.
use
Motorcycles K-750 commonly used in law-enforcement bodies.In the 50-60s of the last century, motorcycles with sidecars were the main police patrol vehicles.In private hands, the K-750 got infrequently, until there was a mass cancellation of machines from the army and police units in the early seventies.Almost all written off motorcycles entered the retail and the public were sold.
Specifications motorcycles K-750 and K-750m
They are as follows:
- number of places - in a two-wheeled version 2 places with a stroller - 3 seats;
- dimensions in a two-wheeled version: length 2430, height 825, width 1100 mm;
- with sidecar - width 1700 mm, 1200 mm gauge;
- wheel base - 1450 mm;
- engine - boxer, carburetor, gasoline, two-cylinder, four-stroke;
- cylinder diameter - 78 mm;
- compression ratio - 6;
- stroke - 78 mm;
- engine speed - 4600-4800 rpm;
- working cylinder total volume - 746 cubic meters / cm;
- capacity - 26 liters.from.;
- gross weight - 240 kg;
- the maximum speed of the motorcycle - 90 km / h;
- fuel consumption - 6.0 liters per 100 kilometers;
- brand carburetor - K-37A;
- capacity fuel tank - 21 liters;
- ground clearance - 120 mm;
- maximum load - 300 kg.
Specifications motorcycles can vary slightly in the manufacturing process.
Electrical
following indicators:
- ignition - battery 6 V;
- battery - the type of EQ-12;
- generator - type G-414;
- relay controller - type PP-302;
- breaker distributor - type PM11A, PM05;
- induction coil - type B2B, B201.
Chassis
its following characteristics:
- frame - tubular double gated;
- front suspension - Telescopic;
- rear suspension - lever-pendulum on a hydraulically-spring shock absorbers reverse action;
- amplitude of the front wheel - 140 mm;
- free lift back wheel - 95 mm;
- tire size - 3.75 x 19 inches;
- brakes - drum, drum, friction linings.
How much is K-750 motorcycle
models produced in 50-60s, are rarities and are popular among collectors.But they also are of value and as a reliable means of transportation.Therefore, the question "how much is the motorcycle K-750" no single answer.Prices vary over a wide range from 0 to 12 150 thousand rubles (depending on the year and the technical condition).
