The aim of this examination is an investigation of the achievability and preferences of utilizing the natural gas as a contrasting option to gasoline as a fuel for hybrid electric vehicles. Using CNG vehicles are extremely valuable in India considering the way that gasoline fuel is offered at a vigorously sponsored cost and consequently, by converting a significant portion of the automobiles to run on CNG, the gasoline fuel utilization could be lessened. This will bring about more oil being accessible for trade which will be valuable to the economy of the nation. This process assessed a test examination on Compressed Natural Gas as an elective fuel for four-stroke start motor and furthermore Battery worked. The essential target of the investigation was to determine the performance and the fumes emanations of the motor utilizing distinctive fuel. The motor utilized as a part of the examination was initially a single cylinder, four-stroke start motor and minor alterations were done to allow the trials to keep running on CNG fuel. Amid the running, the engine was coupled to a ropeway dynamometer to quantify a few motor execution parameters and a gas analyzer was embedded into the motor fumes tailpipe for estimating the fumes emanations. The engine execution considers were led with engine setup. Parameters like brake power, brake fuel utilization and brake thermal efficiency were ascertained. The test outcome showed that CNG fuel has the closest performance to Gasoline fuel. The focus levels of CO, CO2 and unburnt HC recorded are observed to be lower than the gas-fuelled motor.