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All Journal PAWIYATAN Journal of Vocational Education and Automotive Technology Pawiyatan Journal of Automotive Technology Vocational Education MANGGALI
Joko Suwignyo
IKIP Veteran Semarang
Automotive Engineering Education Engineering Environmental Science Social Sciences

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PENGARUH PENAMBAHAN KAPASITOR PADA SISTEM PENGAPIAN AC (ALTERNATING CURRENT) DAN VARIASI BUSI TERHADAP EMISI GAS BUANG PADA SEPEDA MOTOR 4 TAK 100 CC Supriyadi, Supriyadi; Suwignyo, Joko; Abdillah, Fuad; Bahtiar, Fahmy Zuhda
Journal of Vocational Education and Automotive Technology Vol 7 No 2 (2025): Journal of Vocational Education and Automotive Technology
Publisher : Ivet University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31331/joveat.v7i2.4318

Abstract

This research aims to determine the effect of adding capacitors and variations in spark plugs on the Exhaust Gas Emission content of the Honda Supra X 100cc motorbike. This research method uses an experimental method with descriptive statistics. The object used in this research is a 100cc Supra The place of research was carried out at the PVTMO Ivet Semarang Automotive Workshop. The technique used in collecting data is conducting experiments by testing the objects to be studied and recording the necessary data. Data analysis in this research uses descriptive statistics, namely describing or describing the data that has been collected as it is without making general conclusions or generalizations. The resulting data includes the amount of CO, HC, CO2, O2, lambda, and AFR. The research results showed that the highest CO gas content was produced by Spark Plug Racing using additional capacitors with an average value of 6.80%. Meanwhile, the lowest CO gas content is created by original or standard spark plugs without using additional capacitors with an average value of 5.93%. Meanwhile, the highest HC was produced by Racing Spark Plugs using additional capacitors with an average value of 485 ppm, almost the same as that produced by original spark plugs with the addition of capacitors. Meanwhile, the lowest HC gas content is produced by original or standard spark plugs without using additional capacitors with an average value of 378 ppm.
PENGARUH PENGGUNAAN GAS ELPIJI TERHADAP PERFORMA MESIN SEPEDA MOTOR 4 TAK 100 CC Hartono, Sri; Suwignyo, Joko; Fatra, Fahmy; Setiawan, Toni
Journal of Vocational Education and Automotive Technology Vol 7 No 2 (2025): Journal of Vocational Education and Automotive Technology
Publisher : Ivet University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31331/joveat.v7i2.4319

Abstract

This study aims to measure the impact of LPG on the performance of a 100 cc 4-stroke motorcycle running on pertalite, including torque, engine power, exhaust emissions, and fuel consumption. This quantitative research uses the true experiment method with descriptive analysis to systematically present the test results. The study shows that the torque produced by LPG is 6.49 Nm at 5000 RPM, which is lower than the torque produced by pertalite, which is 7.27 Nm at the same RPM. The engine power generated by LPG is also lower at 5.06 Hp at 7000 RPM, while the engine power on pertalite is higher at 6.13 Hp at the same RPM. In terms of exhaust emissions, LPG is proven to be more environmentally friendly compared to pertalite. LPG exhaust emissions are lower in all components, such as CO, O2, CO2, HC, Lambda, and AFR. Furthermore, LPG is more efficient in fuel consumption, with efficiency reaching 27.99% to 49.98% better than pertalite. Overall, pertalite is superior in terms of torque and engine power, while LPG is better in terms of exhaust emissions and fuel consumption efficiency.
Co-Authors Abdul Aziz Anton, Muhammad Aprianto, Nuraedy Aqil, Sonafi Mustofa Bahtiar, Fahmy Zuhda Bayu Ariwibowo Bayu Ariwibowo, Bayu Budiyanto Budiyanto Burhan, Nurul Fahmi, Syafrizal Fatra, Fahmy Fuad Abdillah Hafidz, Miftah Al Husein, Bakhtiar Saddam Mahendra, M.T., Sena Miftah Al Hafidz Muhammad Zainal Arifin, Muhammad Zainal Nasir, M. Fuad Maimun Nuraedhi Apriyanto Putra, Tedy Fahmi Riyanto, Luky Saputro, Puji Eko Sena Mahendra Siswo, Adi Sri Hartono, Sri Sulistianto, Feri Supriono, Sigit Supriyadi Supriyadi Toni Setiawan Wijayanto, Widian YANTO, PUJI