Variator Rollers

Discussion in 'Newbie Scooter Tuning' started by Big lad, Jul 5, 2011.

  1. Big lad

    Big lad New Member

    Messages:
    11
    Hi All

    Just changed the Variator Rollers in my yamaha slider to some standard 6.5g weights and the bike seams to do nothing then have quite a kick, like a powerband, i was just wondering what is the best weight of roller to have in this bike?

    The bike also has a technigas exhuast, the variator restrictor removed, I was going to change the main jet but dont know which one to get???

    Thanks
     
  2. creditz

    creditz Member

    Messages:
    118
    Rides:
    Speedfight 50 AC
    Whenever you change the exhaust or put on an air filter you will need a bigger main jet, go up 5-10% or ask the people you bought the exhaust from, usually it's trial and error. Buy a box of jets so it's cheaper on carriage... I ended up spending £20 on jets because i bought them individually lol... if everything apart from the restricters are still standard then your roller size should stay the same, unless you got rollers in with your exhaust? Try those in it.
     
  3. Big lad

    Big lad New Member

    Messages:
    11
    Hi thanks for that,

    The main jet that is in it now says NC 90 on it, any suggestions on where to buy jets from? and how do i know if its right?

    Thanks
     
  4. tErr0

    tErr0 Administrator Staff Member

    Messages:
    5,816
  5. zipV6turbo

    zipV6turbo New Member

    Messages:
    13
    i usually buy a pack of jets around the size what ive got in and work down through them but always work down as its better to running too rich than too lean but the problem is either that your rollers are little to heavy or you need to up jet mate.
     

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