The increase in usage of the automobiles day by day releases a huge amount of exhaust emissions such as HC, CO, CO2 and NOx etc. All these pollutants in exhaust emissions mainly depend on combustion phenomena which occur in engine cylinder. The effect of incomplete combustion releases a large amount of exhaust emissions as well as low brake thermal efficiency. To address these problems a noval method of magnetic fuel ionization method is adopted to condition the fuel. In the present investigation the experiments were conducted by using permanent Neodymium N52 magnet with field intensity 12,000 Gauss (1.2 Tesla) of Mono pole and Dipole that are fixed on fuel intake manifold before the fuel injector. This magnet creates a powerful magnetic field thereby the hydrocarbons changes their orientation. Due to this the molecules interlocked with the oxygen during combustion process and produces better combustion in the engine cylinder. The enhanced combustion causes to increase in the Combustion and reduction in poisonous gases from the engine.