Ok Head question!

Discussion in 'Australian Motorcycles' started by Nathan Smith, Sep 19, 2003.

  1. Nathan Smith

    Nathan Smith Guest

    Snigger.. sorry

    OK I'm looking for a common (or recent) four valve head on either a 250ish
    single or >500ish twin... But here's the trick, I'd like it to be twin
    overhead cam, or at least single OHC...

    Cheers,
     
    Nathan Smith, Sep 19, 2003
    #1

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  2. Nathan Smith

    Knobdoodle Guest

    Oooh spooky!!
    I've just seen a post from two years ago......
    Clem
     
    Knobdoodle, Sep 19, 2003
    #2

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  3. Nathan Smith

    sharkey Guest

    Eh? Whuffo? What kind of condition does it need to be in?
    You need the cams, camfollowers etc too? the valves themselves
    have to be any good?

    -----sharks
     
    sharkey, Sep 19, 2003
    #3
  4. Nathan Smith

    Nathan Smith Guest

    Nah just models... parts not yet... I'll go looking at wreckers for em
    later, just ideas at this stage..

    Nathan
     
    Nathan Smith, Sep 19, 2003
    #4
  5. Nathan Smith

    Hamish Alker-Jones Guest

    On 19/9/03 9:49 PM, in article
    What are you after? Working or abstract art?

    Hammo
     
    Hamish Alker-Jones, Sep 19, 2003
    #5
  6. Nathan Smith

    allgoodnamestaken Guest

    What about dirt spurters? ttr250 has DOHC IIRC. maybe xr250. yzf250
    in roadies, maybe cx500, ducati pantah may have desmo heads:)?
     
    allgoodnamestaken, Sep 20, 2003
    #6
  7. Nathan Smith

    sharkey Guest

    CX is 4-valve, but pushrods not OHC.

    SRX250 is four-valve single DOHC, I think.
    CB250RS is four-valve single SOHC with forked rockers.
    VT500 has two three-valve SOHC heads?

    So, are you going to tell us what you're doing or what?

    -----sharks
     
    sharkey, Sep 20, 2003
    #7
  8. Nathan Smith

    Knobdoodle Guest

    The GSX series were 4-valve and the GS just two valve.
    The GSX400 was a 4-valver but the GS450 was a two.
    I'm sure the GS500 is a descendant of the GS450.
    Clem
     
    Knobdoodle, Sep 20, 2003
    #8
  9. Nathan Smith

    Geoff and Jodie Guest

    The motor is at least.


    Geoff and Jodie
     
    Geoff and Jodie, Sep 20, 2003
    #9
  10. Nathan Smith

    Theo Bekkers Guest

    "Knobdoodle" wrote

    My old Yamaha TX500 was four-valve twin-cam. But around 1973.
    What did the GS450 screw and was it a difficult birth?

    Theo
     
    Theo Bekkers, Sep 21, 2003
    #10
  11. Nathan Smith

    Julie and Deb Guest

    Reminds me of the joke about the obstetrician that took up motorcycle
    mechanics....
     
    Julie and Deb, Sep 21, 2003
    #11

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