2006 motor in a 2004 bike will it work

Discussion in '6th Generation 2002-2013' started by 83 interceptor, Feb 24, 2015.

  1. 83 interceptor

    83 interceptor New Member

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    i have a 2004 vfr800 and the motor is toast. can i put a 2006 vfr800 motor in it?
     
    83 interceptor, Feb 24, 2015
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  2. 34468 Randy

    34468 Randy Secret Insider

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    Good question. I don't see why not so long as the wireing harness recall has been done. But I don't know for sure.
     
    34468 Randy, Feb 24, 2015
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  3. 83 interceptor

    83 interceptor New Member

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    i have read that the 06 fuel injectors are bigger? the 04 and 06 have different part numbers. is this true and why are they? is the ecu the same on both years.i would think they are different due to the vtec engagement
     
    83 interceptor, Feb 24, 2015
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  4. 34468 Randy

    34468 Randy Secret Insider

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    OK. You got me there. Like I said, I really don't know for sure. Hopefully Toecutter and or Tinkerinwithstuff will pipe in. They are far more in the know than I am. Actually a lot of guys here are. I just would have thought that basically, they are the same engine with the new being more refined so why not just bolt in?
     
    34468 Randy, Feb 24, 2015
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  5. jethro911

    jethro911 Member

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    I believe that mechanically it would be a straight replacement. Bringing the 06 ECU with the engine would align the programming with any subtle changes the engine may have embodied. As already suggested, bring the harness with the 06 engine as well.

    Sounds like a ten beer project, give or take...
     
    jethro911, Feb 25, 2015
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  6. Badbilly

    Badbilly Official VFRWorld Troll Of The Year!

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    Get Randy to supply the beer.
     
    Badbilly, Feb 25, 2015
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  7. jethro911

    jethro911 Member

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    The better question here is what happened to the 04 motor? :sorrow:

    These things are like the troll that lives under a bridge on level seven of your fav video game. When they come out, you can't kill them and you die!:chaingun:
     
    jethro911, Feb 25, 2015
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  8. TOE CUTTER

    TOE CUTTER Mullet Man

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    I would not think twice aboot using an 06 engine, but only the engine. Injectors and electrical need to stay with the 04 but I would run the 06 stator.
     
    TOE CUTTER, Feb 25, 2015
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  9. 34468 Randy

    34468 Randy Secret Insider

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    I would consider that. But his profile only says he is from the USA. That could be Dillingham Alaska for gawd sake.
     
    34468 Randy, Feb 25, 2015
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  10. 83 interceptor

    83 interceptor New Member

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    ok so i need the fuel system off a 06 and the computer correct? she seems to run fine now. 06 stator 06 motor in a 04 vfr with 04 cpu and 04 fuel system. i am installing a pcv so do i still need the cpu and injectors?
     
    83 interceptor, Feb 25, 2015
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  11. TOE CUTTER

    TOE CUTTER Mullet Man

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    04 bike with 04 injectors wiring and electronics.....06 engine with the 06 stator.
     
    TOE CUTTER, Feb 25, 2015
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  12. 83 interceptor

    83 interceptor New Member

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    well thats what i have installed and seems to work good. and btw whats the deal with the bigger injectors? will i gain anything from them
     
    83 interceptor, Feb 25, 2015
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  13. 83 interceptor

    83 interceptor New Member

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    any help?
     
    83 interceptor, Mar 12, 2015
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  14. NormK

    NormK New Member

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    If it is running fine I would leave it alone
     
    NormK, Mar 12, 2015
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