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Thread: Aprilia 70cc conversion troubles help needed.

  1. #1
    apriliaforum newb
    Join Date
    Apr 2018
    United kingdom

    Aprilia 70cc conversion troubles help needed.

    Hi i desperatley need help this little scooter is driving me insane, it has just had a 70cc big bore kit fitted by myself with the recomended 21mm black series carb (delorto) so i have been adjusting the heights of the needle and got no where, new plugs hot and standard types no difference at all, new arrow exhaust no difference at all now starting to wonder if there is a dark art to tuning these little engines. I am a master mechanic and i tell you this little shit of a scooter has caused me to swear more than once i tell you. I have done every bit of tuning i can imagine and nope it just sits down and says no i am not playing so over to you Aprilia guys for some help and advice or i will set fire to the little bstard.

  2. #2
    apriliaforum expert
    Join Date
    Jun 2013
    get a dellorto 17.5 carb the 21 is just to big for the setup

  3. #3
    apriliaforum Member
    Join Date
    Mar 2019
    I was running sport with dellorto 21 mm ds + pod filter before.Too big?Nah, just hungry.

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