DAFTAR ISI
Halaman Judul .............................................................................................. i Halaman lembar Pengesahan ....................................................................... ii Kata Pengantar ............................................................................................. iii Daftar Isi ........................................................................................................ iv Daftar Gambar................................................................................................ v
BAB I PENDAHULUAN .............................................................................. 1 A. Latar Belakang Prakerin ............................................................... 1 B. Tujuan Prakerin ............................................................................. 1 1. Tujuan Umum ............................................................................. 1 2. Tujuan Khusus ............................................................................ 2 C. Metode Pengumpulan Data ........................................................... 2 BAB II PEMBAHASAN ............................................................................... 4 A. Pengertian Mesin Empat Tak ....................................................... 4 B. Cara Kerja Mesin Empat Tak ....................................................... 5 1. Langkah Hisap ........................................................................... 5 2. Langkah Kompresi ..................................................................... 5 3. Langkah Tenaga ......................................................................... 6 4. Langkah Buang .......................................................................... 8 C. Finishing Penting — Overlaping .................................................. 9 D. Komponen-Komponen Mesin Empat Tak .................................. 10 BAB III PENUTUP ....................................................................................... 12 A. Kesimpulan ..................................................................................... 12 B. Saran ............................................................................................... 12
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DAFTAR GAMBAR
1. Gambar 1.0 Mesin 4 Tak 2. Gambar 1.1 Langkah Hisap 3. Gambar 1.2 Langkah Kompresi 4. Gambar 1.3 Langkah Tenaga 5. Gambar 1.4 Langkah Buah
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