Analisa Pengaruh Air-Fuel Ratio Kaya Terhadap Performa Internal Combustion Engine Bahan Bakar Bensin Satu Silinder 150 CC

This study was conducted to investigate the effect of variations in the rich air-fuel ratio (AFR) on the performance of a single-cylinder gasoline internal combustion engine. In injection motors or often called EFI, it is easy to make adjustmets to the desired performance. All parts of the machine are controlled electrically. The Electronic Control Unit is the main component that acts as a regulator of all functions in the motor engine. In this study, we take he rich AFR as a reference. Experimental method using a single cylinder gasoline engine 150 CC. The air-fuel ratio is varied by AFR 10:1, AFR 11:1, AFR 12:! At engine speed of 3000 to 9000 rpm with an interval 250 rpm. The result of the combustion engine test get the following torque data, at AFR 12:1 with a value 12,2 HP, AFR 11:1 with a value 11,9 HP, AFR 10:1 with a value 9,9. AFR 12:1 gets the highest Torque and Power. AFR 12 makes the best mix for fast engine speeds