Page 7 - MODUL AJAR TEKNOLOGI SEPEDA MOTOR
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Gambar 4. 15 Karburator Variabel Venturi ...................................................................... 90
Gambar 4. 16 Karburator Venturi Tetap Butterfly Throttle Valve ................................... 90
Gambar 4. 17 Karburator Piston Valve Variabel Venturi ................................................. 91
Gambar 4. 18 Karburator Tipe Horisontal Draft atau Side Draft ...................................... 91
Gambar 4. 19 Karburator Tipe Down Draft ...................................................................... 92
Gambar 4. 20 Prinsip Pencampuran .................................................................................. 93
Gambar 4. 21 Prinsip Pencampuran Dengan Tekanan ...................................................... 93
Gambar 4. 22 KetikaPutaran Stasioner ............................................................................. 94
Gambar 4. 23 Ketika Putaran Menengah .......................................................................... 95
Gambar 4. 24 Ketika Putaran Tinggi ................................................................................ 95
Gambar 4. 25 Konstruksi Karburator ................................................................................ 97
Gambar 4. 26 Sistem Pelampung ...................................................................................... 97
Gambar 4. 27 Sistem Utama ............................................................................................. 98
Gambar 4. 28 Sistem Idel .................................................................................................. 98
Gambar 4. 29 Sistem Awalan (Choke).............................................................................. 99
Gambar 4. 30 Sistem Choke Bekerja ................................................................................ 99
Gambar 4. 31 Konstruksi Karburator Vakum Konstan (Venturi Variabel)..................... 100
Gambar 4. 32 Konstruksi Sistem Pengaya ...................................................................... 101
Gambar 4. 33 Cara Kerja Sistem Pengaya ...................................................................... 102
Gambar 4. 34 Pemeriksaan Ketinggian Pelampung ........................................................ 105
Gambar 4. 35 Pemeriksaan Ketinggian Bahan Bakar ..................................................... 105
Gambar 5. 1 Grafik Konsentrasi CO dan CO2 ............................................................... 118
Gambar 5. 2 Pengaruh temperature terhadap NOx ......................................................... 119
Gambar 5. 3 CO Versus Perbandingan Udara dan Bahan Bakar .................................... 120
Gambar 5. 4 HC Versus Perbandingan Udara dan Bahan Bakar .................................... 121
Gambar 5. 5 NOx versus Perbandingan Udara dan Bahan Bakar ................................... 122
Gambar 5. 6 Instalasi Pengukuran Gas Buang ................................................................ 124
Gambar 5. 7 Pemasangan Ujung Alat Ukur .................................................................... 124
Gambar 5. 8 Posisi Ujung Probe Alat Ukur .................................................................... 124
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