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3LN into a 2KR

Discussion in 'FZR250.com - Archives' started by d_slayer, Jan 12, 2006.

  1. d_slayer

    d_slayer New Member

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    What has to be done to fit a 3LN motor into my FZR 250 to replace my worn 2KR.. or will it fit straight in <!-- s:sniper: --><img src="{SMILIES_PATH}/icon_snipersmilie.gif" alt=":sniper:" title="Sniper" /><!-- s:sniper: -->
     
    d_slayer, Jan 12, 2006
    #1
  2. TiMBuS

    TiMBuS New Member

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    Don't completely know.. But I think someone already asked this. The mount points should be the same (But I think you'll have a few unused slots on the motor - not a problem)

    The oil sensor might (MIGHT) get screwed up and you'll need a transistor switch for that. Depends on what 3LN motor you get. Also, you'll need the same model carbies. No doubt about that one.
    Thats all I can think of. Have fun with that.


    Advice: If the motor has no stamped engine number.. KEEP THE RECEIPT!
    Damn VicRoads...
     
    TiMBuS, Jan 15, 2006
    #2
  3. TBone

    TBone New Member

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    I do think the 3LN-1 motor should fit into a 2KR frame... the 3LN-3 has a screw in oil filter which I think will be in the way of the frame... so perhaps the oil pan needs to be swaped... I have no idea as to the pickups for the ignition... Also the 2KR is wired up for an oil level sensor while the 3LN-3 engine has an oil Preasure sensor...
     
    TBone, Jan 16, 2006
    #3
  4. brad1

    brad1 New Member

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    search for my earlier post will give almost everything you need to know 3LN into 2KR
     
    brad1, Jan 19, 2006
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  5. d_slayer

    d_slayer New Member

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    Will Let everyone Know in the next two weeks as I got the motor and am trying to find time to do it.. will keep you all posted...
     
    d_slayer, Jan 28, 2006
    #5
  6. imense

    imense New Member

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    ur not upgrading the bike infact ur downgrading the bike as 2kr motor has 3-5 more BHP than 3nl motor.
     
    imense, Feb 2, 2006
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  7. d_slayer

    d_slayer New Member

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    I'm let to believe that they are the same motor.. anything that makes the bike go would be an upgrade at this stage
     
    d_slayer, Feb 3, 2006
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  8. koma

    koma New Member

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    Other way round my friend.
    The 3LN's increased weight gave the techies a reason to tweak the top end and air flow to increase the redline and up the power a few bhp.
     
    koma, Feb 3, 2006
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  9. ACE

    ACE Active Member

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    1985 40hp to 1989 to 1994 was 45hp 1994 on was 40hp I think?
     
    ACE, Feb 3, 2006
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  10. imense

    imense New Member

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    but somebody told me 3nl has the edge just due to the exup valve!.

    anyway can we install exup on 2kr?
     
    imense, Feb 14, 2006
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  11. Boz

    Boz New Member

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    Some 2kr's have exup already (the later model 2kr's).

    As for this: <!-- l --><a class="postlink-local" href="http://www.fzr250.com/viewtopic.php?t=635">viewtopic.php?t=635</a><!-- l -->
     
    Boz, Feb 14, 2006
    #11
  12. d_slayer

    d_slayer New Member

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    yes mine was the tech 21 with exup.. half way there but have come accross the sprockets are different so you have to change the back sproket and chain
     
    d_slayer, Feb 14, 2006
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  13. ACE

    ACE Active Member

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    89 2kr's got the exup
     
    ACE, Feb 14, 2006
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  14. d_slayer

    d_slayer New Member

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    ok got it in but now its like i have no throttle.. where do i start looking the cables or the coil.. have tested the CDI and it ok
     
    d_slayer, Feb 16, 2006
    #14

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