2007 Piaggio Nrg 50

Discussion in 'General Chat' started by Hicko1985, Apr 19, 2019.

  1. Hicko1985

    Hicko1985 New Member

    Messages:
    5
    Hi,

    I have recently purchased a 2007 Piaggio nrg 50 for my son. No knowing much about mopeds and being more used to motorbikes I have a question if I may....

    It had a Leo vinci exhaust fitted. When pulling away it seems to take a lot of revs to get moving, it's not instant like I thought it might be. Am I wrong to assume it should pull away like this or could there be a fault? I've read that clutch rollers and springs should be changed when fitting an exhaust like this, is this right?

    Any help would be appreciated .

    Thanks
    Marc
     
  2. scubabiker

    scubabiker NITROJUNKIE

    Messages:
    6,670
    That's your clutch springs.
    Kinda like you are holding in the clutch and giving it a load of revs then releasing it slow.
    Harder springs will make it feel more like you have dropped the clutch.
    It's great when I can explain in terms of actual bikes...
     
  3. Hicko1985

    Hicko1985 New Member

    Messages:
    5
    Thanks mate. Would you advise hard springs or medium? What's best for a 16 year old with no experience...
     
  4. Sam phantom

    Sam phantom Active Member

    Messages:
    780
    Put a standard clutch/springs in it, it’ll be spot on

    The Leo exhaust comes with 5.5 gram rollers I believe
     
  5. Hicko1985

    Hicko1985 New Member

    Messages:
    5
    OK will do, other than weighing the rollers is there any way of telling if they did come with the exhaust and have been changed?
     
  6. Sam phantom

    Sam phantom Active Member

    Messages:
    780
    Yes I think there almost always blue with Leo pipe
     
  7. Hicko1985

    Hicko1985 New Member

    Messages:
    5
    Brilliant, thanks. I'll let you know how I get on.
     
    Sam phantom likes this.
  8. scubabiker

    scubabiker NITROJUNKIE

    Messages:
    6,670
    Std are black unmarked..
    Aftermarket are coloured
    And yeah medium or std springs will do
     
  9. Hicko1985

    Hicko1985 New Member

    Messages:
    5
    Hi, well ive finally got round to replacing the springs and the rollers. Ive put in standard springs and 6g rollers.... Still not very good at pulling away. Been out for a little ride and its quite dangerous at junctions not knowing when the thing will actually move!! Anymore sugestions as to what the problem may be? Thanks
     
  10. scubabiker

    scubabiker NITROJUNKIE

    Messages:
    6,670
    Try even lighter rollers. 6g is kinda heavy
     
  11. Stevep

    Stevep Well-Known Member

    Messages:
    5,151
    Actually scuba, it's the other way round. It needs heavier rollers to throw out earlier. Lighter ones will need more engine revs before they get thrown out.
    BUT........6gr is about right. Just done one of these NRG's yesterday. I put 6.5gr in the variator.
    It could be that the contra spring has been changed for a stiffer one. (I did that)
    What are the revs showing just as it starts to move? If it's around the 6000rpm mark then I'd leave it at that.
     
    scubabiker likes this.
  12. scubabiker

    scubabiker NITROJUNKIE

    Messages:
    6,670
    Blurgh yeah....
    Painkillers....
    My son poked my eye out last night....
     
    Stevep likes this.
  13. Stevep

    Stevep Well-Known Member

    Messages:
    5,151
    LOL:p
    Soon change when the "imports" arrive
     
  14. Damjan

    Damjan Member

    Messages:
    82
    Rides:
    Baotian Falcon 50R
    First you must rejet your scooter, then see what rpm's it holds while acceleration and from there we could tell you if you need lighter/heavier rollers. You always need sets of rollers if u wanna tune it properly, also the nrg the piaggio cylinder and your exhaust should be strongest around 9000-9400rpm, and on top speed it should top out at 10 000-10500rpm, if the cylinder and piston are healthy.
     

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