Rollers or Jets?

Discussion in 'The Workshop' started by JamesNRG, Jan 21, 2010.

  1. JamesNRG

    JamesNRG New Member

    Messages:
    201
    Rides:
    Piaggio NRG Extreme
    Okay, need a quick simple answer now or she goes in the Piaggio garage, I have a Doppler S3R and a NRG Extreme A/C (2003) This is what happens when it is fitted.

    What 'dya think? Rollers or jets?

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    1. Start bike, Idles fine, Revs fine
    2: Nock off stand. Pull throttle, revs, no pull.
    3. Sudden boost, jet engine style to 30 mph
    4. Dies down again, Revs stay at 6000rpm (normal cruising rpm with standard pipe anyway) speed drops.
    5. Stop the bike, confused and turn it off.

    Is this rollers or jets? as i would much rather spend £8 on a set of rollers than £100 on a mechanic jetting my bike!

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    Thanks :up:
     
  2. adz452

    adz452 Member

    Messages:
    710
    Rides:
    Vespa T5
    this is transmission related the rollers are to heavy for the new pipe drop the roller weight and de-restrict your variator as i just said in the other post but ye u will also need to upjet a few sizes
     
  3. JamesNRG

    JamesNRG New Member

    Messages:
    201
    Rides:
    Piaggio NRG Extreme
    Variator washer is long gone! kekekeke

    Erm, Okay, what size you reccomend? I heard they are 19x15.5 for the NRG, but will 4.3gr do? Looking at some Polini ones on a website i cant say as i will get a slapped wrist :mod:
     
  4. rideorcollide

    rideorcollide Active Member

    Messages:
    2,122
    Rides:
    TYPH 172
    you can go to cbs and buy them so you dont have to order, yeah its rollers.. try around 5-5.5

    standard is 6.7
     
  5. JamesNRG

    JamesNRG New Member

    Messages:
    201
    Rides:
    Piaggio NRG Extreme
    Sorry mate, whats cbs????? :cool:


    Okay, Well, i can 4.7 or 5gr, what shall i go for? as i can order now?

    EDIT: I can also get 5.3gr, Polini ones.
     
  6. rideorcollide

    rideorcollide Active Member

    Messages:
    2,122
    Rides:
    TYPH 172
    cbs is a malossi tech centre shop near hounslow... if i was you i would just buy all of them or buy a stage6 box because you might need to play around to get them right
     
  7. JamesNRG

    JamesNRG New Member

    Messages:
    201
    Rides:
    Piaggio NRG Extreme
    Bought some 5.3'sn for the minute, Polini 19.15.5's

    On a bit of a tight budget at the mo' haven't been working since before xmas due to snow/bad weather, so i'll do that when i got the cashola.

    I'm in Kent, ain't got a clue where Hounslow is :grin:
     

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