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All Journal Saber: Jurnal Teknik Informatika, Sains dan Ilmu Komunikasi
Bagus Febriyana
Politeknik Keselamatan Transportasi Jalan
Computer Science & IT

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Pengaruh Variasi Filter Udara terhadap Emisi dan Performa Yamaha NMax 155 cc Buang Turasno; Dimas Aril Pratama; Aziz Kurniawan; Bagus Febriyana
SABER : Jurnal Teknik Informatika, Sains dan Ilmu Komunikasi Vol. 4 No. 3 (2026): Juli : Jurnal Teknik Informatika, Sains dan Ilmu Komunikasi
Publisher : STIKes Ibnu Sina Ajibarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59841/saber.v4i3.3931

Abstract

This study investigates the effect of air-filter variation on exhaust emissions and engine performance of a 155 cc Yamaha NMax motorcycle. An experimental method was applied using three filter configurations: original, canvas, and racing. Engine performance was measured using a chassis dynamometer, while exhaust emissions were measured using a gas analyzer. Each filter was tested repeatedly under controlled conditions using Pertamax RON 92, standard engine condition, engine temperature of 60–70 °C, and tire pressure of 30–32 psi. Performance measurements were conducted at engine speeds of 3,000–8,000 rpm and repeated three times for each filter; emission measurements were repeated five times for each filter at idle. The results show that filter characteristics affected the power and torque curves, particularly at medium-to-high engine speeds. The racing filter produced the highest average peak power of 9.47 HP and peak torque of 10.52 Nm based on the three repeated measurements, while the canvas filter showed the lowest peak power. For emissions, the original, canvas, and racing filters produced average CO concentrations of 0.300%, 0.280%, and 0.112%, respectively, while HC concentrations were 64.4, 51.6, and 35 ppm. Compared with the original filter, the racing filter reduced CO by 62.7% and HC by 45.7%. The findings indicate that a lower intake-flow restriction can support engine performance while reducing incomplete-combustion indicators under the tested conditions.
Co-Authors Aziz Kurniawan Buang Turasno Dimas Aril Pratama