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Gsxr stem swap problem , need help

Discussion in 'The Garage' started by 007sparky, Aug 3, 2014.

  1. 007sparky

    007sparky XS650 Enthusiast

    Hi all
    Just pressed out the stem of my xs650 after much pissing about trying to take old weld off a rusty stem bottom , anyway got it out and when trying it gsxr bottom yoke or triple to USA folk it's not the same size hence the stem is baggy where as original is a press fit ? Around half a mm out ?
    How the hell do I get around this ? Turning out to be a right hassle
    Original xs stem is welded to yolk at the bottom and gsxr is press fit , don't really fancy trying to weld steel to aluminium as can't see it working , is building stem up with weld a possibility and grinding back to same size as gsxr stem ?
     
  2. XSLeo

    XSLeo XS650 Guru Top Contributor

    It seems that several people have used that front end on the XS650. If you scroll down a bit you will find a list of similar threads. Your search might start there.
    Try putting GSXR swaps in the search box at the top of the page.
    Leo
     
  3. 007sparky

    007sparky XS650 Enthusiast

    Thanks Leo , had a look though and nobody seems to mention the same issue , I can only think either build the surface up with weld or braze and mill back or a sleeve would need to be made
     
  4. RFLIVES

    RFLIVES Resident Sidecar nut

    I had a bushing made and pressed then welded it to the xs stem then had the tree machined to a press fit for the new stem. Cognito moto now makes a kit for this
     
  5. Norman1950

    Norman1950 XS650 Enthusiast

    I read that someone heated up the stem and used a tapered drift to get the stem to the right size. was going to try this method this week on my xs360.
     
  6. bt24

    bt24 XS650 Addict

    I have a GSXR 750 complete front end on my champion framed Yamaha, people say the steering head is the same as the stock XS 650. My other Staracer Yamaha has a Honda F4 complete front end on it. I haven't ridding the blue & white Yamaha yet but the Staracer with the Honda F4 front end made it so much easier to ride. Hope this helps some.

    Bryan
     

    Attached Files:

  7. bt24

    bt24 XS650 Addict

    Staracer Yamaha 750 with Honda F4 complete front end.
     

    Attached Files:

  8. bt24

    bt24 XS650 Addict

    Since the blue Yamaha picture was taken the top portion of the steering stem was shaved down to allow the top triple clamp to slide down to meet the top of the steering stem head.
     
  9. bt24

    bt24 XS650 Addict

    I looked on the Cognito Moto website but could not find the kit you were speaking about, Help?

    Bryan
     
  10. 007sparky

    007sparky XS650 Enthusiast

    Cheers everybody atleast I now know Im not going mad and it does require more work as I thought I might have an odd sized stem , I thought about heating the metal and widening with a tapered drift also as somebody mentioned or my other idea was to layer the stem bottom with some weld and lathe back to the right size .

    Its so annoying as the fit is really really close
     
  11. 007sparky

    007sparky XS650 Enthusiast

    Cheers everybody atleast I now know Im not going mad and it does require more work as I thought I might have an odd sized stem , I thought about heating the metal and widening with a tapered drift also as somebody mentioned or my other idea was to layer the stem bottom with some weld and lathe back to the right size .

    Its so annoying as the fit is really really close
     
  12. RFLIVES

    RFLIVES Resident Sidecar nut

  13. bt24

    bt24 XS650 Addict

  14. 007sparky

    007sparky XS650 Enthusiast

    I've now carried out my original plan by building the lower end of stem up with weld and lathed back to new larger diameter , pressed it back in and worked a treat .
    Don't get me wrong it's not as nice looking as the cognito one but it cost me nothing and to be honest I'd rather spend the $250 it would cost me to get that kit on something on show as the stem is invisible once installed , regards mark
     

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