Analisis Variasi Busi Terhadap Performa dan Bahan Bakar Motor Bensin 2 Langkah Yamaha F1ZR 110CC

Spark plugs have various types and specifications that can improve motorcycle performance. The purpose of this study was to determine the ratio of torque, power, and fuel consumption in a two-stroke gasoline engine produced from standard, platinum, and iridium spark plugs. The method used in this research is to use the one-way variance test method or One-way ANOVA. This test was carried out using a Yamaha F1ZR motorcycle which was carried out using a dyno test tool. The test results for this platinum spark plug have the highest torque reaching 14.78 ft-lbs at 7,500 rpm engine speed, while for standard spark plugs obtained 10.14 ft-lbs. at 7500 rpm engine speed and iridium spark plugs get 9.53 ft-lbs at 7500 rpm engine speed. The highest power is obtained on platinum spark plugs reaching 14.78 hp at 7500 rpm engine speed, while for standard spark plugs 14.47 hp at 7500 rpm engine speed and for iridium spark plug 13.62 hp at 7500 rpm engine speed. The lowest fuel consumption is produced on iridium spark plugs which reaches 0.545 kg/hour at 5000 rpm engine speed, while the highest fuel consumption on platinum spark plugs reaches 0.700 kg/hour at 9000 rpm engine speed.