Pengaruh Jenis Busi terhadap Performa Mesin dan Emisi Gas Buang pada Sepeda Motor Kawasaki KLX 150G Tahun 2022

Penggunaan busi merupakan salah satu faktor yang dapat memengaruhi proses pembakaran pada mesin sepeda motor. Perbedaan karakteristik busi dapat berpengaruh terhadap performa mesin, konsumsi bahan bakar, dan emisi gas buang yang dihasilkan. Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan busi standar NGK CR7HSA dan busi iridium NGK CR7HIX terhadap performa mesin dan emisi gas buang pada sepeda motor Kawasaki KLX 150G tahun 2022.
Penelitian dilakukan dengan membandingkan penggunaan busi standar NGK CR7HSA dan busi iridium NGK CR7HIX pada sepeda motor Kawasaki KLX 150G tahun 2022. Pengujian performa mesin menggunakan dynamometer dan pengujian emisi gas buang menggunakan gas analyzer dilakukan pada beberapa variasi putaran mesin. Parameter yang dianalisis meliputi daya mesin, torsi, Fuel Consumption (FC), Specific Fuel Consumption (SFC), Brake Mean Effective Pressure (BMep), serta emisi gas buang karbon monoksida (CO) dan hidrokarbon (HC).
Hasil penelitian menunjukkan bahwa penggunaan busi iridium NGK CR7HIX menghasilkan performa mesin yang lebih baik dibandingkan busi standar NGK CR7HSA. Daya maksimum yang dihasilkan sebesar 11,6 HP pada 8000 RPM, lebih tinggi dibandingkan busi CR7HSA sebesar 11,3 HP pada 8000 RPM. Torsi maksimum yang dihasilkan sebesar 11,3 N.m pada 7000 RPM, sedangkan busi CR7HSA sebesar 11,0 N.m pada 7000 RPM. Selain itu, penggunaan busi iridium menunjukkan efisiensi pembakaran yang lebih baik yang ditunjukkan oleh konsumsi bahan bakar yang lebih rendah dan nilai BMEP yang lebih tinggi dibandingkan busi standar. Pada pengujian emisi gas buang, busi CR7HIX menghasilkan emisi yang lebih rendah dibandingkan busi CR7HSA pada seluruh variasi putaran mesin. Pada putaran 8000 RPM, kadar CO sebesar 1,65% dan HC sebesar 255 ppm, lebih rendah dibandingkan busi CR7HSA yang menghasilkan CO sebesar 2,10% dan HC sebesar 270 ppm. Hasil penelitian menunjukkan bahwa penggunaan busi iridium NGK CR7HIX mampu meningkatkan performa mesin sekaligus menurunkan emisi gas buang pada sepeda motor Kawasaki KLX 150G tahun 2022.

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The spark plug is one of the key components that influences the combustion process in a motorcycle engine. Differences in spark plug characteristics can affect engine performance, fuel consumption, and exhaust emissions. This study aims to determine the effects of using the standard NGK CR7HSA spark plug and the NGK CR7HIX iridium spark plug on the engine performance and exhaust emissions of a 2022 Kawasaki KLX 150G motorcycle.
The study was conducted by comparing the performance of the standard NGK CR7HSA spark plug with that of the NGK CR7HIX iridium spark plug installed on a 2022 Kawasaki KLX 150G motorcycle. Engine performance tests were carried out using a dynamometer, while exhaust emissions were measured using a gas analyzer at various engine speeds. The parameters evaluated included engine power, torque, Fuel Consumption (FC), Specific Fuel Consumption (SFC), Brake Mean Effective Pressure (BMEP), and the exhaust emissions of carbon monoxide (CO) and hydrocarbons (HC).
The results indicate that the NGK CR7HIX iridium spark plug provides better engine performance than the standard NGK CR7HSA spark plug. The maximum power achieved with the iridium spark plug was 11.6 HP at 8,000 RPM, compared with 11.3 HP at 8,000 RPM for the standard spark plug. The maximum torque reached 11.3 N·m at 7,000 RPM, while the standard spark plug produced 11.0 N·m at 7,000 RPM. Furthermore, the iridium spark plug demonstrated improved combustion efficiency, as evidenced by lower fuel consumption and higher BMEP values than the standard spark plug. In terms of exhaust emissions, the NGK CR7HIX produced lower emissions than the NGK CR7HSA at all tested engine speeds. At 8,000 RPM, the CO emission was 1.65% and the HC emission was 255 ppm, compared with 2.10% CO and 270 ppm HC for the standard spark plug. These findings demonstrate that the NGK CR7HIX iridium spark plug enhances engine performance while simultaneously reducing exhaust emissions in the 2022 Kawasaki KLX 150G motorcycle.