Mkii 70cc racing c21 28mm carb etc.

Discussion in 'Scooter Tuning' started by Meeks, Feb 5, 2019.

  1. Meeks

    Meeks New Member

    Messages:
    5
    Just looking for some advice on my new set up I’m building.
    Need some suggestions for roller weights - bearing in mind the over sized trans pulleys.. also in need to jet that massive 28mm carb!

    Yamaha Aerox
    The SET UP:


    Stage 6 Mk2 70cc raging 0.6 squish & a few mm advanced on stator plate(portmatched)

    Jasil extreme crank

    Stage 6 c4 metal cage bearings & seals

    Pwk stage 6 28mm carb

    Stage 6 viton reed block carbon fibre

    Motorforce 28mm racing air box

    RMS High flow Manuel fuel tap

    Diaphram fuel pump

    Polini boost bottle

    Motorforce racing Coil 32k volts

    Stage 6 oversize rt transmition pulleys

    Jasil 13/43 primary gear kit

    Jasil 14/41 secondary gear kit

    Bosch 12v water pump


    Plus loads more.. this is most of the stuff that will effect rollers and jetting
     
  2. scubabiker

    scubabiker NITROJUNKIE

    Messages:
    7,321
    Wouldn't know without starting it and riding it.
    The boost bottle doent do anything by the way.
    Thats going to be awesome though.
    Still running an oil pump or premix?
     
  3. Meeks

    Meeks New Member

    Messages:
    5
    Yes it’s premix, I know the boost bottle doesn’t do much but it can help when slamming the throttle after decel I believe.
     
  4. Sam phantom

    Sam phantom Active Member

    Messages:
    874
    I have done a stage6 race build but not with a carb that big or the over size pulleys

    So prob won’t help you knowing my set up

    Sounds like a serious build though! Any pics?
     
  5. Meeks

    Meeks New Member

    Messages:
    5
     
  6. Meeks

    Meeks New Member

    Messages:
    5
    0C8B18A0-08DE-4EC0-8E88-9526942306C9.jpeg E270E9D9-DA1A-4172-8B75-BF6B2FC9F86A.jpeg Any input is greatly appreciated:D not many pics yet but will be documenting the full build and should be posting to YouTube. Will keep you updated
    Here’s a couple of random pics A2310FBE-89C9-4BBE-958A-9E529E8C6DB2.jpeg
    F89B5519-293C-42E9-9402-0886F2C1E3B0.jpeg
     
    Sam phantom and scubabiker like this.
  7. pupo-cro

    pupo-cro New Member

    Messages:
    22
    You have some nice parts there :) Keep us posted.
     
  8. Damjan

    Damjan Active Member

    Messages:
    154
    Rides:
    Baotian Falcon 50R
    You have way too much gearing, just put the primary 13-43, as for jetting start from 160mainjet, rollers try 3,5 but your main problem is your ignition, you must get innerotor ignition.
     
    milo2025 likes this.

Share This Page