1 Cara Setting Karburator Motor

Tugas utama karburator adalah mencampur Bahan Bakar (BB) + Udara (O2). Kira-kira dengan perbandingan range nya BB : O2 adl 1 : 13-15. Pokoknya gmn caranya biar mesin dapet suplai campuran segitu.

Kenapa pake range, padahal teori di buku2 pembakaran ideal itu 1:14?

Jwbannya adl Karena kondisi mesin & linkungan mempengaruhi settingan campuran BB:O2.


Misal:

Kompresi makin tinggi BERARTI mesin makin panas BERARTI butuh suplai BB lebih banyak biar mesin gak jebol.
Humidity (kelembaban) lingkungan makin tinggi BERARTI campuran BB terkontaminasi air, BERARTI campuran makin miskin, BERARTI bensin hrs lebih banyak.
Suhu lingkungan rendah BERARTI suhu kerja mesin turun BERARTI bensin harus dikurangi agar suhu kerja mesin jadi ideal.
Knalpot bobokan (Free flow) BERARTI rpm makin tinggi BERARTI suhu mesin meningkat BERARTI butuh BB makin tinggi.
Dan masih banyak lagi parameter yg harus diperhatiin termasuk desain lubang masuk pada blok yg b’pengaruh dg settingan spuyer sebagai penyalur BB.
Itu teori dasarnya.

Setting Karbu:

Karbu pny 2 spuyer :

Satu buah main jet (tuk NSR std ukurannya 130) yg berperan meyalurkan BB saat bukaan gas sekitar setengah putaran keatas
Satu buah pilot jet (NSR std ukurannya 45) yg berperan menyalurkan BB dari putaran gas 0 derajat sampe penuh, cm efek dari pilot jet ini bisa dikatakan tidak terlalu signifikan pada bukaan gas penuh N rpm mesin yg sudah tinggi.
Hal lain yg berpengaruh dengan setingan termasuk :

0 YAMAHA MIO SOUL DRAG MODIFICATION

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0 YAMAHA YZ 250 CC DRAG BIKE MODIFICATION

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YAMAHA YZ250 KOREKAN YAHUD 7,4 DETIK - 201 METER:

SPEK KOREKAN:
-KARBURATOR : KEIHIN PWK 40
-MAIN JET : 160
-PILOT JET : 65
-PISTON : STANDART
-RASIO : STANDART
-TIMING : Maju 12 DERAJAD sebelum TMA (Titik Mati Atas)
-KNALPOT : Hand made
-FINAL GEAR : 18-36 (201 M) dan 18-33 (402 M)

0 YAMAHA JUPITER Z DRAG MODIFICATION

JUPITER Z DRAG product long motor YAMAHA. but JUPITER Z still very often used in arena drag race to fight speed. with merger science "KOREKAN" long and new to merged to modify JUPITER Z be powerfuler.

gas suspension is canalized to pass keihin perannun 28 that installed 115 with pilot 45. the result, quicker energy at rpm on it but cover acceleration under hind gear wheel.

SPEK MODIFIKASI:

KARBURATOR: KEIHIN PJ 34mm

MAIN JET: 160

PILOT JET: 42, RASIO 14-29 (I), 16-23 (II)

MEMBRAN: V-VORCE III

PENGAPIAN: SUZUKI RM 80

KOIL: NOLOGY

KNALPOT: LION (MALAYSIA)

FINAL GEAR: 13-45 (201 M) and 14-42 (402 M)

2 YAMAHA CRYPTON DRAG BIKE MODIFICATION

YAMAHA CRYPTON DRAG MODIFICATION is a product long motor yamaha. but yamaha crypton still very often used in arena drag race to fight speed. with merger science "KOREKAN" long and new to merged to modify yamaha crypton be powerfuler.

gas suspension is canalized to pass keihin perannun 28 that installed 115 with pilot 45. the result, quicker energy at rpm on it but cover acceleration under hind gear wheel.

SPEK KOREKAN:
SILINDER HEAD: POTONG 0,5mm
SILINDER: POTONG 0,8mm
KLEP: SONIC
PISTON: IZUMI
CDI: BRT MASTER CHIP
KARBU: PE 28
MAIN JET: 115
PILOT JET: 45