what size main jet for peugeot speedfight 50cc?scooter?

i have got a yamaha neos and want to put a 70cc kit on it what jets would i have to change and to what size

andrew saunders
September 2012

size 64 jet needed

tim
September 2012

i have a speedfight 2, 06 plate and i have fitted a stage 6 exhaust with a size 50 jet stranded and i have no problems what so ever?. weird huh?..

Brad
November 2010

i just had a malossi 70cc go wrong it had a 72 size jet race exhaust with half a ring in it so i put my 50cc back on it got a 54 size jet and it would not go so ive put the 72 on and now it works. 09.11.2009

tom
November 2009

i have a 88 size jet on my speedfight 50cc but it keeps cuttin out iv been told i need to up my jets i also have a 70cc kit on wat size shud i go to.??

curty.b
October 2009

its a 50cc speedfight and its only got an exhaust no 70cc kit or nuffing on it yet do not put 80 or any where near 110 jus increase it buh 2 - 4 sizes that will be plenty, on my speedfight i have 100cc pm tunning 360 exhaust malossi 70cc bore kit and a 19mm race carb and i have an 80 main jet, so dont put an 80 in if its only the exhaust you have put on.

dave
November 2008

what do you mean by plug chop .

ray
November 2008

buy an 80, and 110,do plug chop to prove

glen
November 2008