A Gasoline Engine
is an internal combustion engine with spark-ignition, designed to run on gasoline and similar volatile fuels.
In most gasoline engines, the fuel and air are usually pre-mixed before compression (although some modern gasoline engines now use cylinder-direct gasoline injection). The pre-mixing was formerly done in a carburetor, but now it is done by electronically controlled fuel injection, except in small engines where the cost/complication of electronics does not justify the added engine efficiency. The process differs from a diesel engine in the method of mixing the fuel and air, and in using spark plugs to initiate the combustion process. In a diesel engine, only air is compressed (and therefore heated), and the fuel is injected into very hot air at the end of the compression stroke, and self-ignites.
gasoline engine range from GX160,GX200,GX270,GX390,GX420,or can distinguish by power, such as 5.5hp, 6.5hp,7hp,9hp,13hp,15hp gasoline engine.