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"Based on the premise that simple problems should always be checked first, this practical, hands-on book/CD-ROM/ worktext package introduces the diagnosis and troubleshooting of automotive engine control systems. It serves users as a single source for information on digital storage oscilloscopes, fuel injection and ignition system diagnoses, five-gas exhaust analysis, emission testing, and more -- with a very technical but easy-to-read and understand presentation. Specific chapter topics cover the diagnostic process; diagnostic trouble code retrieval; technical service bulletins and scan tool data; digital multimeters and digital storage oscilloscopes; advanced starting and charging systems diagnosis; ignition system diagnosis; engine fuels and driveability diagnosis; advanced computer sensor diagnosis; computerized carburetor diagnosis; advanced electronic fuel-injection diagnosis; emission control device diagnosis; five-gas exhaust analysis; engine condition diagnosis; and symptom-based diagnosis."

"Sebagaimana telah diketahui secara umum, bahwa exhaust system atau lazim disebut knalpot, merupakan bagian vital dari sebuah kendaraan bermotor.Karena hal itulah di bidang otomotif produk ini mengalami perkembangan pesat dan mempunyai pelanggan yang semakin meningkat. Fungsi knalpot adalah menambah kecepatan, memperindah bentuk dan mendapatkan suara yang enak didengar dan yang paling utama untuk menaikan performa mesin. Namun, hingga saat ini penelitian tentang knalpot masih jarang sehingga orang-orang pada umumnya belum mengetahui parameter apa saja yang mempengaruhi baik-buruknya suatu sistem gas buang. Penelitian ini dilakukan dengan pengujian langsung model knalpot yang sama dengan tipe mesin yang berbeda tujuannya untuk mengetahui hubungan antara tingkat kebisingan, insertion loss, kecepatan suara, tekanan balik dan debit aliran sehingga nantinya bisa menjadi acuan untuk pengembangan lebih lanjut. Hasil penelitian dicapai pengunaan model knalpot standar lebih cocok dipakai pada mesin motor 125cc dibandingkan pada mesin motor 100cc.

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As is well known, that the exhaust system or muffler is a vital part of a motor vehicle. Because it's in the field of automotive products have experienced rapid development and increasing customer. Function of the muffler is picking up speed, shape and beautify a pleasant voice and most of all is to increase engine performance. However, up to date research on the muffler is still rare that people do not know what the parameters affecting the merits of an exhaust system.

The research was conducted by direct testing of the same exhaust model with different types of engines aim to determine the relationship between level of noise, insertion loss, speed of sound, backpressure and flow rate so that later can be could be a reference for further development. The results achieved are standard muffler models more suitable for use on a 125cc motorcycle engine than on a 100cc motorcycle engine."