Why is it difficult to start a motorcycle when cold but normal when hot?
1 Answers
Motorcycle difficulty starting when cold but normal when hot is due to insufficient cylinder compression ratio or poor valve sealing. The cylinder is a cylindrical chamber in the engine where a piston is driven by the pressure or expansion force of the working fluid, including similar but non-cylindrical parts in certain special types of engines. The valve is specifically responsible for introducing air into the engine and expelling exhaust gases after combustion. In terms of engine structure, valves are divided into intake valves and exhaust valves. A motorcycle is a two- or three-wheeled vehicle driven by a gasoline engine, steered by handlebars for front-wheel turning. It is lightweight, flexible, and fast, widely used for patrol, passenger and cargo transportation, and also serves as sports equipment.