Achsani Taqwim 2024. THE EFFECT OF SPARK PLUG GROUND VARIATION AND MACHINE ROTATION ON CONVERSION OF GASOLINE MOTOR FUEL TO LPG FUEL ON EXHAUST EMISSIONS OF 200CC WATER PUMP ENGINE: PENGARUH VARIASI GROUND BUSI DAN PUTARAN MESIN PADA KONVERSI BAHAN BAKAR MOTOR BENSIN KE BAHAN BAKAR LPG TERHADAP EMISI GAS BUANG MESIN POMPA AIR 200 CC. Jurnal Teknik Mesin. 3, 2 (Nov. 2024), 337–342. DOI:https://doi.org/10.33795/j-meeg.v3i2.3237.