Aplikasi penambahan gas hidrogen pada motor bakar 4 lngkah disertai pengecilan pilot jet dengan melakukan uji jalan kendaraan berbahan bakar premium = Application adding the hydrogen gas to four strokes internal combustion engine and reduction of pilot jet size with the road test and premium fuel

Analisis penggunaan venturi mixer 4 lubang terhadap perubahan performa dan emisi sepeda motor 4 langkah / 125 cc dengan penambahan LPG = Analysis usage of venturi mixer 4 hole to performance and emission changes of 4 stroke / 125 cc motorbike with adding the LPG

Analisis penggunaan venturi mixer 12 lubang menyilang terhadap perubahan performa dan emisi pada sepeda motor 4 langkah /125 cc dengan penambahan LPG (propana4,58% dan butana 83,14 %) = Analysis of using 12 crossing-holes venturi mixer to increase the performance and emission of 4 stroke/125 cc motorbike with LPG (propane 4,58% and butane 83,14%) addition

Analisa konsumsi bahan bakar bensin dan akselerasi sepeda motor 4-langkah / 125 cc dengan penambahan LPG (Propana 7 % dan Butana 90 %) = Fuel consumption and acceleration analysis of 4-stroke / 125 cc motorcycle with LPG (7 % Propane and 90 % Butane) addition

Analisa konsumsi bahan bakar bensin dan akselerasi sepeda motor 4-langkah / 125 cc dengan penambahan LPG (Propana 10,6 % dan Butana 78,16 %) = Fuel consumption and acceleration analysis of 4-stroke / 125 cc motorcycle with LPG (10,6% Propane and 78,16% Butane) addition