Basically i have a 06 Derbi Senda SM X-treme Standard bore ( new gaskets ) Full MK Race exhaust 17.5mm carb ( upjetted from a 70 to 94 main jet ) I was wanderinf if you could give me a hand, or maybe help me out Bacially i had to upet the carb for the exhaust and to de-restrict it so i put a 94 jet in it, when i rev it, the bike wont fully rev out, it goes *Vrooommmm* dies * vrooomm* dies then splutters and dies Should i put my 70 jet back in?
Assuming it's the newer DB050 motor (oil pump above water pump) then you need to either buy the derbi derestriction kit, or the bits from a dellorto dealer... Even the standard bike when drestricted has a 105 main jet, change the 208 atomiser tube to a 210 and fit a A13 needle on middle notch... Then remove the brass inlet plate, and swap the 11t front sprocket for a 15tooth version.
Na i dont need to derestrict the bike, the bike had a giannelli exhaust, and then cracked, so i slung a mk on, the full system, when i had a 70 jet in it, it ran like shit so i spoke to my lbs and he told me to put a 94 jet in, so i put it in, and it started, revs and dies, ill put a video up of it later But i have derestricted the bike fully The only way i can ride it, is to bump it, and then it rides shit til its warmed, then the bike flys, would i upjetted it too much or too less ? I need help soon
