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The crankshaft of a motorcycle engine is a combination type consisting of the left half of the crankshaft, the right half of the crankshaft and the crank pin. The main journals of the left and right halves are equipped with ball bearings to support the crankshaft to the crankcase. Both ends of the crankshaft are equipped with flywheels, magnetos and clutch active gears. The connecting rod is a monolithic structure, the large head is toroidal, and the needle roller bearing and crank pin are combined to form a crank connecting rod group. In two-stroke engines, when installing the piston ring, pay attention to align the opening of the piston ring with the positioning pin in the piston ring groove to prevent the piston ring from rotating in the ring groove, causing air leakage and scratching the intake and exhaust ports on the cylinder liner.

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NEWS

How to install?

Why does the oil-cooled engine change when it is violent for a while? What is the reason for speeding up?

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2023-08

Why adjust?

 date : 2023-08--16

Usually the distance seen by the engine parts is very tight, and adjusting the throttle spacing is a time-consuming and constant attempt.

2019-05

Practical | How often does the motorcycle change the oil?

 date : 2019-05--20

As a convenient transportation in urban and rural areas, motorcycles have always been active in the lives of ordinary people.

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DT250

Brand: SUPER MOTOS Class: OFF ROAD

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As subsidiary of Chongqing Shuangshi Motorcycle Manufacturing Co., ltd. which is a large-scale enterprise converted from military to civilian under China Weapon Equipment Group, the Chongqing BESUDA MOTOR has produced more than 500,000 units of motorcycle, and exported globally to Myanmar, other reginons in South America & Africa. BESUDA MOTOR involves motorcycle industry as its strategic direction, developing into motorcycle R&D, manufacturing, technich engineering and over sea market CKD cooperation.

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Motorcycles, driven by gasoline engines, two-wheeled or three-wheeled vehicles that steer the front wheel by handlebars, are light and flexible, fast driving, widely used in patrol, passenger and cargo transportation, etc., and are also used as sports equipment. In the general direction, motorcycles are divided into street cars, road racing motorcycles, motocross motorcycles, cruise cars, station wagons, etc.