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Anyone know the HP of an XJ700?!?!

Discussion in 'Hangout Lounge' started by NATOM, Sep 1, 2009.

  1. NATOM

    NATOM New Member

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    Hey there! Joined this site a few months ago and have found that everyone is not only welcoming but very knowledgable, so I figured I would throw out a question.
    I got an '85 XJ700 Maxim...not the X... and I was wondering if anyone has put one on a dyno or knows the estimated stock horespower.
    I would take any horsepower estimates from similar bikes..(a year or two newer or older...but 700cc).
    Thanks and I'm looking forward to your experiences.
    Safe ridin,
    Tom
     
    NATOM, Sep 1, 2009
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  2. wizard

    wizard Active Member

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    86hp @ 9500 rpm
     
    wizard, Sep 1, 2009
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  3. mlew

    mlew Well-Known Member

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    Welcome to the site NATOM, I live in Apex right next door. We are planning a ride this weekend(Sep5th), come join us.
     
    mlew, Sep 1, 2009
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  4. helmet

    helmet Member

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    On 2 wheels... just lost my hat.
    you cant really compare other bikes to the XJ of 85. most bikes put out a lot less power than these did.
    a honda 700 shadow only made 63 horse.
    :snickers:
     
    helmet, Sep 1, 2009
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  5. Babylon

    Babylon Member

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    My Maxim 700 made 80.1HP on the dyno the other week, which isn't too bad for a 23 year old bike I didn't think?! :D
     
    Babylon, Sep 3, 2009
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  6. helmet

    helmet Member

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    not bad at all babylon! you could do some tweaks on it and get that power back :D
     
    helmet, Sep 3, 2009
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  7. chadall3n

    chadall3n Member

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    is the 86 hp the same for the maxim x?
     
    chadall3n, Sep 3, 2009
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  8. schmuckaholic

    schmuckaholic Well-Known Member

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    According to the Maxim-X site, yes... for the 700. The 750X puts out 90.
     
    schmuckaholic, Sep 3, 2009
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  9. Babylon

    Babylon Member

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    Cheers Helmet :)

    Sorry, meant to say mine is a Maxim X :oops:

    Carbs need balancing and general tune up so we'll have to wait & see what I can get out of her on the next club dyno day in the Spring??? 8)
     
    Babylon, Sep 4, 2009
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  10. helmet

    helmet Member

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    On 2 wheels... just lost my hat.
    I would love to see what that does after a few turns of a screw here and there!
     
    helmet, Sep 4, 2009
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  11. 85MaximXX

    85MaximXX Member

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    I have never seen a liquid cooled and air cooled model of the same cc have the same HP rating in any application. I don't believe they are the same rating even tho thats all you can find on the net. For example look at snowmobiles a fan cooled 440cc sled puts out maybe 37-40HP a liquid cooled same 440cc sled can push 80+ depending on the compresion and port timing. I find it hard to believe yamaha would put the effort to add 3 valves per cylinder, the radiator,fan, and tubing to make a bike heavier with the same HP as a air cooled bike. It wouldn't make sense in either business or performance
     
    85MaximXX, Sep 6, 2009
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    Alexj700s likes this.
  12. Babylon

    Babylon Member

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    After I did the dyno shootout day with my club I had trouble finding out whet the Maxim X's HP was until I found this thread, so would be interested to see if the water cooled figure is correct! :)
     
    Babylon, Sep 7, 2009
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  13. 85MaximXX

    85MaximXX Member

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    the yamaha 1985/86 fz700 which shares the same bore and stroke, same head design with 5 valves but has straighter ports and a factory 4 to 1 exhaust is rated at 102HP I believe. I could believe the 86 for the liquid but mthe air should be a little less. everywhere I have looked they say they are rated the same which as I stated makes no sense.
     
    85MaximXX, Sep 7, 2009
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  14. 85MaximXX

    85MaximXX Member

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    85MaximXX, Sep 7, 2009
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    Dalpha22 likes this.
  15. helmet

    helmet Member

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    On 2 wheels... just lost my hat.
    this site shows 0-60 has 6 seconds. my mini-van does that
    :lol:

    everywhere else shows 3.x for 0-60
     
    helmet, Sep 7, 2009
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