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Chapter 4
ENGINE DESIGN
The motorcycle is equipped with a two-cylinder four-stroke air-cooled engine. The opposed
arrangement of cylinders in the horizontal plane is the outstanding feature of the motorcycle design
which ensures proper cooling and balancing of the crank gear. The engine valves are located in the
cylinder heads.
In summer, carefully observe the heating condition of the engine, power transmission units and the run-
ning gear mechanisms. Under normal heating conditions of the engine, the temperature of the cylinder
heads should not be over 356°F-428°F/180°C-220°C.
During everyday preventive maintenance, clean the engine of mud and dust, paying special
attention to the cooling fins as their fouling will impair the efficiency of the engine cooling. Check en-
gine crankcase, cylinders and cylinder heads for oil and fuel leaks. Check carburetor to cylinder head
compliance fittings for any cracks or leaks. Visually inspect the alternator for any oil leaks.
Содержание Gear Up 2007
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