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KARBURATOR. PT. INDOMOBIL NIAGA INTERNATIONAL. 2W SERVICE TRAINING. ADVANCE. KARBURATOR. (a). Air. (b). (c). Water. 1. PRINSIP KERJA KARBURATOR. PT. INDOMOBIL NIAGA INTERNATIONAL. 2W SERVICE TRAINING. ADVANCE. KARBURATOR. 2. FUNGSI KARBURATOR.
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PT. INDOMOBIL NIAGA INTERNATIONAL 2W SERVICE TRAINING ADVANCE KARBURATOR (a) Air (b) (c) Water 1 PRINSIP KERJA KARBURATOR
PT. INDOMOBIL NIAGA INTERNATIONAL 2W SERVICE TRAINING ADVANCE KARBURATOR 2 FUNGSI KARBURATOR • MERUBAH BENSIN MENJADI PARTIKEL – PARTIKEL BERCAMPUR DENGAN UDARA SEHINGGA MUDAH DI SEMBURKAN • MENGATUR PERBANDINGAN CAMPURAN UDARA DAN BAHAN BAKAR • MENGATUR JUMLAH CAMPURAN UDARA DAN BAHAN BAKAR YANG MASUK KE MESIN
PT. INDOMOBIL NIAGA INTERNATIONAL 2W SERVICE TRAINING ADVANCE KARBURATOR Flow of air quickens and pressure drops Air Fuel-air mixture Atmosphere Gasoline 3 VENTURI
PT. INDOMOBIL NIAGA INTERNATIONAL 2W SERVICE TRAINING ADVANCE KARBURATOR Cable Throttle valve Fuel-air mixture Air CAMPURAN UDARA DAN BAHAN BAKAR 4
PT. INDOMOBIL NIAGA INTERNATIONAL 2W SERVICE TRAINING ADVANCE KARBURATOR Output mixture ratio 10 : 1 Mixture ratio 14 : 1 Theoretical mixture ratio 18 : 1 20 40 60 80 100 Degree to which throttle valve is open (%) PERBANDINGAN UDARA – B. BAKAR VS BUKAAN THROTTLE VALVE 5
PT. INDOMOBIL NIAGA INTERNATIONAL 2W SERVICE TRAINING ADVANCE KARBURATOR Air Air Air Air Gasoline Gasoline Gasoline Gasoline 13 g : 1 g Maximum output mixture ratio 12,8 g : 1 g Rich boundary limit 22 g : 1 g Lean boundary limit 15 g : 1 g Economical mixture ratio 6 PERBANDINGAN UDARA – B. BAKAR
PT. INDOMOBIL NIAGA INTERNATIONAL 2W SERVICE TRAINING ADVANCE KARBURATOR Horizontal draft type Down draft type 7 JENIS KARBURATOR 1. BERDASARKAN ARAH ALIRAN
PT. INDOMOBIL NIAGA INTERNATIONAL 2W SERVICE TRAINING ADVANCE KARBURATOR Opens Closes Throttle valve Throttle valve Closes Opens Butterfly – type throttle valve Piston – type throttle valve 8 JENIS KARBURATOR 2. BERDASARKAN SISTEM TUAS KATUP
PT. INDOMOBIL NIAGA INTERNATIONAL 2W SERVICE TRAINING ADVANCE KARBURATOR Double barrels Single barrels 9 JENIS KARBURATOR 3. BERDASARKAN JUMLAH SALURAN
PT. INDOMOBIL NIAGA INTERNATIONAL 2W SERVICE TRAINING ADVANCE KARBURATOR Throttle stop screw Throttle stop screw spring Jet needle Throttle valve Needle jet Main air Pilot outlet Pilot air Air at idling low output Bleed air Air jet Pilot air screw Fuel at idling low output Needle valve Pilot jet Fuel air mixture at idling low output Air at medium and high speeds Float Fuel at medium and high speeds Main jet Fuel-air mixture at medium and high speeds 10 KONSTRUKSI KARBURATOR
PT. INDOMOBIL NIAGA INTERNATIONAL 2W SERVICE TRAINING ADVANCE KARBURATOR Starter plunger Fuel injection port Secondary air Air bleed hole (primary air Intake port) Starter pipe Starter jet 11 SISTEM CHOKE
PT. INDOMOBIL NIAGA INTERNATIONAL 2W SERVICE TRAINING ADVANCE KARBURATOR CHOKE OTOMATIS PTC heater To flywhell magneto Starter plunger Termowax Spring Starter plunger holder Starter plunger needle Starter plunger Starter plunger Air Fuel-air mixture Air Starter plunger needle Starter plunger needle Fuel Fuel 12 SISTEM CHOKE
PT. INDOMOBIL NIAGA INTERNATIONAL 2W SERVICE TRAINING ADVANCE KARBURATOR Throttle valve Pilot air screw 13 PILOT SYSTEM 1. TIPE LUBANG TUNGGAL Pilot jet
PT. INDOMOBIL NIAGA INTERNATIONAL 2W SERVICE TRAINING ADVANCE KARBURATOR Bypass Bypass Pilot outlet Pilot outlet Pilot jet Pilot jet ( 1 ) ( 2 ) 14 PILOT SYSTEM 2. TIPE LUBANG GANDA
PT. INDOMOBIL NIAGA INTERNATIONAL 2W SERVICE TRAINING ADVANCE KARBURATOR Jet needle Main air jet Needle jet Main jet 15 MAIN SYSTEM
PT. INDOMOBIL NIAGA INTERNATIONAL 2W SERVICE TRAINING ADVANCE KARBURATOR MAIN SYSTEM 16
PT. INDOMOBIL NIAGA INTERNATIONAL 2W SERVICE TRAINING ADVANCE KARBURATOR MAIN SYSTEM 17
PT. INDOMOBIL NIAGA INTERNATIONAL 2W SERVICE TRAINING ADVANCE KARBURATOR TIPE MAIN JET 18
PT. INDOMOBIL NIAGA INTERNATIONAL 2W SERVICE TRAINING ADVANCE KARBURATOR 19 POSISI KATUP GAS Throttle position 0 ~ 1/8 1/8 ~ 1/4 Active system Pilot system Pilot system Main system 1/4 ~ 3/4 3/4 ~ fully open Main system Main system
PT. INDOMOBIL NIAGA INTERNATIONAL 2W SERVICE TRAINING ADVANCE KARBURATOR 20 TINGKAT KERJA KARBURATOR Gas Buka Buka Penuh Tutup Penuh Komp. Karburator 1/8 1/4 1/2 3/4
PT. INDOMOBIL NIAGA INTERNATIONAL 2W SERVICE TRAINING ADVANCE KARBURATOR Air gun 21 PEMERIKSAAN DAN PENYETELAN
PT. INDOMOBIL NIAGA INTERNATIONAL 2W SERVICE TRAINING ADVANCE KARBURATOR Rotation speed 0 Air screw return amount ½ 1½ 2½ 0 Point at which Speed rises Air screw Set air screw to halfway point Throttle stop screw Point at which speed begins to rise PEMERIKSAAN DAN PENYETELAN VM TYPE 22
PT. INDOMOBIL NIAGA INTERNATIONAL 2W SERVICE TRAINING ADVANCE KARBURATOR Calipers 1 st stage 2 st stage 3 st stage 4 st stage 5 st stage Needle clip Lean Rich PEMERIKSAAN DAN PENYETELAN VM TYPE 23
PT. INDOMOBIL NIAGA INTERNATIONAL 2W SERVICE TRAINING ADVANCE KARBURATOR KARBURATOR GSX 250 24
PT. INDOMOBIL NIAGA INTERNATIONAL 2W SERVICE TRAINING ADVANCE KARBURATOR KARBURATOR FD 110 XCD 25