To increase the volume of the engine, the piston must be exchanged for a standard other besutan / aftermarket larger diameter (Fig.1). Purpose is to make gasoline burn in the room for more, so that combustion increases.
“If for daily, 125-150 cc is sufficient. More than that would drive less comfortable and the engine vibration was bigger, “explained Coky, JP Racing boss at Jl. Paradise No.6E-F, Bintaro, the usual Jaksel make-up bore Scooter road race.
Coil / CDI Racing
This is to improve the letikan spark plugs for more complete combustion and maximum (Fig.2). “With racing CDI and coil performance is guaranteed to rise,” said Julius, shop owners Johnny Holle Motor (JHM).
Per CVT Racing
Create accelerate the transfer of power from the engine to the automatic transmission, regular tuners use a CVT Racing (gbr.3).
“The specifications harder than the original, so that the driving force / tekannya also strong. This is to overcome the round did not let too lelet, “said Ario Joddy, goalie Joddy Motor (JDM) in Jl. Jatiwaringin highway No.1A, Pangkalan Jati, East Jakarta.
Well, if the rider was not satisfied with the changes and part of the application, for a thicker pockets can add racing exhaust and racing carburetor with venturi holes larger than the standard.
Bore Up Package List
Padepokan Matic (0812-838146)
125cc – Rp 2 million
Pistom FIM 53.75 mm piston ring SGP, SGP Smash Per valve, a CVT Kymco, karbu rammer, BRT CDI i-Max, modif manifold, roller Kawahara, noken as custom 285 degrees, grease ENDURO matic, ported polish.
150cc – USD 4 million FIM 55mm piston, piston ring SGP, stroke, 6mm, per valve Akutagawa, a CVT Kymco, karbu PE 28, CDI BRT i-Max, modif manifold, roller Kawahara, noken as custom 330 degrees, grease ENDURO matic, port polish, racing clutch, a new booring.
Jhonny Hole (0812-9599656)
125cc – USD 1.5 million
Izumi Piston set 54mm, Kitaco per CVT, CDI BRT i-Max, ported polish.
150cc – USD 3.5 million
Izumi Piston set 58mm, Kitaco per CVT, CDI BRT i-Max, port polish, valve settings, valve sonic, sleep crank case.
Joddy Motor (021-86601686)
150cc – USD 2.5 million
Blitz Kawasaki piston sets, piston rings sonic, a CVT TDR, modif noken as, upgrade CVT, CDI BRT Dualband ported polish
JP Racing (021-70993827)
125cc – USD 2.425 million
Charisma 53mm piston, piston ring Shogun 110, Noken as 270 degrees Kawahara, Papas head, 1.5 mm, a valve grand, ported polish, roller, BRT CDI i-Max
150cc – USD 5 million
58mm piston set, new booring, Sonic valve 24/28, Kawahara noken as 270 degrees, Papas head 1mm, sleep standard exhaust, ported polish, slide the intake manifold, roller, up 2.5 mm stroke, CDI BRT-Imax
Matic Shop (021-68835990)
125cc – USD 675 thousand
54.5 mm piston sets, a new engine block, original (not including plug)
150cc – USD 750 thousand
59.5 mm piston set, engine block (not including plug)