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motorbike restriction

  • 30-11-2010 10:45am
    #1
    amacca
    Registered Users, Registered Users 2 Posts: 7,202 ✭✭✭


    anyone mechanically minded know the lowdown on restricting motorbikes? (not factory restriction - aftermarket with a cert)

    friend with restricted license (year to go) can get a cheap sp1 (told him to wait and get sp2 in a year) but hes unconvinced.

    wants to get it restricted for remaining year, told him hes mental but he seems determined.

    does restricting a high power bike like that not damage the engine?

    thought it was a washer restricting airflow to the engine, wouldnt that mean fuel going unburnt in the engine, cylinders getting clogged/damaged etc


Comments

  • #2
    AgileMyth
    Closed Accounts Posts: 3,761 ✭✭✭AgileMyth


    As far as I know it would restrict the air and fuel intake.
    Don't think theres any danger of damaging the engine.


  • #3
    Del2005
    Registered Users, Registered Users 2 Posts: 19,102 ✭✭✭✭Del2005


    FI International do a kit for the SP1 and SP2 so it can be done. They'll need to get a dealer/mechanic to fit it.

    My Z750 was restricted with a 50mm long piece of metal on the throttle body. It depends on the bike how it's restricted.

    The big difference on mine since the restriction came off is that the throttle twists all the way and it doesn't fell gutless above 7,000 rpm:D It'll also go over 140km/h now before it just couldn't.

    Not too sure how a pure performance bike would fell restricted, but it'll still be fast enough to get them in trouble.


  • #4
    martydunf
    Registered Users, Registered Users 2 Posts: 403 ✭✭martydunf


    Mine is resticted using washers. They are placed in the carbs which reduces the amount of fuel getting through. Air flow remains the same. If its a SP1, using washers?, being resticted Id imagine it would still have plenty of grunt, the retrictor affects BHP more so than torque, I think.


  • #5
    amacca
    Registered Users, Registered Users 2 Posts: 7,202 ✭✭✭amacca


    tks all... good to know there's no damage to engines.


  • #6
    KamiKazi
    Banned (with Prison Access) Posts: 6,201 ✭✭✭KamiKazi


    Evening chopper, why don't you say log on and say hi while you're at it?

    or if you're tired why not get retard900 to say hi instead?

    :)


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  • #7
    P.C.
    Registered Users, Registered Users 2 Posts: 2,782 ✭✭✭P.C.


    KamiKazi wrote: »
    Evening chopper, why don't you say log on and say hi while you're at it?

    or if you're tired why not get retard900 to say hi instead?

    :)


    Are you OK?


  • #8
    KamiKazi
    Banned (with Prison Access) Posts: 6,201 ✭✭✭KamiKazi


    P.C. wrote: »
    Are you OK?

    Fine mate you?

    P.S. get out on the bike more ya nonce, it's parked up everytime I pass


  • #9
    P.C.
    Registered Users, Registered Users 2 Posts: 2,782 ✭✭✭P.C.


    KamiKazi wrote: »
    Fine mate you?

    P.S. get out on the bike more ya nonce, it's parked up everytime I pass

    Yeah

    First I had man flu, then I was away, then I had man flu version 2.
    Now we have this great weather. :mad:


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