The engine selected for evaluation of the thermal barrier coating was a two-stroke, single cylinder, petrol engine. First this engine was tested as equipped with anair cooled at different speeds and loads condition without a coating. Then the surface of the engine’s piston crown was coated with ceramic materials. The piston crown was coated with 0.35mm thickness of ZrO2 over a 0.15mm thick NiCrAl bond coat. The material used on the pistons was aluminium alloy. The coating process was performed using the plasma spray technique. Finally the ceramic-coated engine was tested again under the same operation conditions as the standard engine.[