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Tambah Kapasitas Mesin Byson

GILAMOTOR.com, Jakarta. – Yamaha Byson bisa dibilang menjual tampilan yang keren banget. Gimana enggak, dari pabriknya sudah dibekali bodi kekar dan kaki-kaki besar bak moge. Ibarat kata, hasrat konsumen pada motor berbodi besar telah dipenuhi pabrikan.

Tapi sayangnya penampilan tersebut enggak didukung performa mesin mumpuni. Itulah yang dikeluhkan Robby Usman, salah satu penunggang Yamaha Byson asal Jakarta. “Bodi sama kaki-kaki sih udah okelah, tapi mesinnya itu terasa kurang tenaga,” katanya. Makanya, oprek mesin dinilai sebagai langkah penyelesaian masalahnya.

Motor pun digiring menuju Gito Motorsport di bilangan Tebet, Jakarta Selatan. Dan mesin pun dioprek serta harus menjalani rawat inap selama satu minggu untuk ptoses pengerjaan agar sesuai dengan keinginan Robby.

Memperbesar kapasitas ruang bakar jadi langkah yang ditempuhnya. Caranya dengan menggusur piston standar Yamaha Byson dan diganti piston tiger berdiameter 63,5 mm.

Proses instalasi piston milik macan enggak terlalu sulit karena diameter pen pistonnya sama, yakni 15 mm. Jika dihitung dengan rumus volume silinder maka hasilnya jadi 183 cc. Lumayan yah. Sesuatu banget…

Berikutnya yang terkena sentuhan adalah noken as yang dibubut. ”Gue ga tau tuh berapa derajat pastinya, pokoknya hasilnya motor jadi kenceng aja,” kata Robby diikuti senyuman. “Terus blok mesin sama head juga dipapas, total 1,5 mm untuk naikin kompresinya,” tambah Robby lagi.

Mesin sudah oke tapi kalau sistem pengkabutan masih bawaan pabrik maka akan kurang maksimal. Makanya Karbu Keihin PE 28 dipilih untuk menggantikan karbu aslinya yang pakai jenis vakum. Tentu, biar tarikan makin responsif pastinya.

Enggak ketinggalan, CDI Racing pakai BRT Dualband. “CDInya juga pakai punya Jupiter MX karena waktu itu belum ada khusus untuk Byson. Jadi tinggal merubah susunan kabel disoket CDI aja,” ujar pria berbadan gempal ini. Saluran gas buang juga diganti dengan model custom berlapis krom.

Selesai oprek mesin, biar tampilan kelihatan lebih garang, motor dibaluri cat merah dengan corak berwarna putih. Velg standar yang berwarna hitam juga diberi warna emas supaya ada sedikit unsur mewahnya.

Setelah rela menunggu, Robby cukup puas dengan performa motornya sekarang. Top speed motor sanggup menyentuh angka 135-140 km/jam. “Enggak tau spidometernya yang ngaco atau emang benar lari segitu ya,” ujarnya heran. Laagh, gimana sih?!

Data Modifikasi:

Ban depan-belakang     : Battlax BT45 110/70-17 & 130/70-17

Karburator                      : Keihin PE 28

Knalpot                             : Custom

Noken as                           : Custom

CDI                                      : BRT Dualband Yamaha Jupiter MX

Cakram belakang           : Aftermarket

54 COMMENTS

  1. abis brapa tuh….???coba benkelnya deket..

    atas ane nyampe 155 160 real tuh?? asik dong bisa balapan ama ninja he…he…

  2. mank bener bro, kebo ane d dibore up jadi 225cc, sdh ditest drive jg, kl yg comment cuma ngomong scorpio sm ninin 250 aj ya tinggal lambaikan tangan kebelakang aj sambil senyum di spion, tp kl sm ninin 150 rr skips baru serasa ketemu lawan yg sangat pas krn susul menyusul.tp yg pasti, g setuju, kebo dibore up utk menambah performa seperti yg loe bilang, krn std nya agak kurang. kl ada jg yg comment beat sama kharisma, biarin aj anjing menggonggong khafilah berlalu, dari gede kaki aj d jauh kemana2 sm kebo, dengan arti misal dua2nya speed sama dgn kebo tp langkahnya d beda 2 kali lipat y sama aj boong, beat dan kharisma bakal ketinggalan 1 km dikentutin doank.Disini berat mesin jg pengaruh utk kecepatan tinggi, g salut sama scorpio krn berat mesin 2 kali lipat dari kebo, yg berarti center of gravity nya sangat pas utk kecepatan tinggi, gak melayang, tp kl ngomong beat dan kharisma, dijamin terbang kebawa angin :)) peace bro … no hurt feeling

  3. coir maz boz ikut nimbrung.
    ane jg penggemar kebo, kmrn dioprek dikit pake piston tiger os;50. kta bengkelnya naik jd 198cc……. ban tetep standar cdi ,karbu ganti, trs knalpot ane bobok. nah pas ane cba di turunan ancol kmayoran jam 5 pagi spedo meter menunjukan angka 147km/jam. gmn tuh mas bos, tanggapanya….!peace.

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