Comparison of Exhaust Gas Emissions of a Carbureted Yamaha Jupiter Z Motorcycle Using Pertalite, Pertamax, and Pertamax Turbo Fuel

Rifani Galuh Pratama; Achmad Rijanto; Nuril Ahmad

doi:10.59890/ijatss.v4i8.296

Authors

Rifani Galuh Pratama Universitas Islam Majapahit, Mojokerto, Indonesia
Achmad Rijanto Universitas Islam Majapahit, Mojokerto, Indonesia
Nuril Ahmad Universitas Islam Majapahit, Mojokerto, Indonesia

DOI:

https://doi.org/10.59890/ijatss.v4i8.296

Keywords:

Exhaust Emissions, Yamaha Jupiter Z, Research Octane Number (RON), Gas Analyzer

Abstract

Motorcycle exhaust emissions have become an important environmental issue because they contribute to air pollution and reflect combustion efficiency. This study aimed to compare the exhaust emissions of a carbureted Yamaha Jupiter Z motorcycle using three commercially available gasoline fuels with different Research Octane Numbers, namely Pertalite RON 90, Pertamax RON 92, and Pertamax Turbo RON 98. An experimental method was employed under controlled operating conditions using engine speeds of 2,000, 4,000, and 6,000 rpm. Exhaust emissions of carbon monoxide, hydrocarbon, and carbon dioxide were measured using a calibrated gas analyzer. The results showed that emission characteristics varied with both fuel type and engine speed. Different fuels exhibited different emission patterns under the tested conditions, while carbon dioxide emissions showed relatively small variations. These findings indicate that fuel type influences exhaust emission characteristics, although the observed effects depend on engine operating conditions rather than fuel octane rating alone. Therefore, selecting gasoline that matches engine specifications can improve combustion quality and contribute to lower exhaust emissions

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