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Thread: Yz125h 1981 restore

  1. #1
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    2nd February 2017 - 11:27
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    Yz125h 1981 restore

    Hello everyone ive started restoring my old mans yz125 1981 motocross bike! Seems theres a few parts ill need and i hope some people have some knowledge about these old machines.
    It seems they dont make the steering headset seals.
    And i also need a new clutch basket and plates as the basket has some nice big groves in it.

    Cheers everyone!

  2. #2
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    25th October 2002 - 17:30
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  3. #3
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    No i havent. Good deal. if the photos are meant to be actual photos those arent the seals these are the only ones ive found

    http://m.ebay.com/itm/YAMAHA-1981-19...002?nav=SEARCH

  4. #4
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    Quote Originally Posted by Simintrev View Post
    No i havent. Good deal. if the photos are meant to be actual photos those arent the seals these are the only ones ive found
    Checking the one review the guy asks for return address as they didn't fit but the company replied in a professional manner. Send them an email.

  5. #5
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    6th May 2012 - 10:41
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    the question really does have to be asked:

    why??

  6. #6
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    Why am i restoring it? Why not? First of watercooled yzs i like yamahas and my dads owned it for around 30 years. And be a fun bike to race vmx in!

  7. #7
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    Quote Originally Posted by Simintrev View Post
    Why am i restoring it? Why not? First of watercooled yzs i like yamahas and my dads owned it for around 30 years. And be a fun bike to race vmx in!
    ok. we'll let you off with that then.



    pics or it didn't happen.

  8. #8
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    20th January 2010 - 14:41
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    Quote Originally Posted by Simintrev View Post
    Hello everyone ive started restoring my old mans yz125 1981 motocross bike! Seems theres a few parts ill need and i hope some people have some knowledge about these old machines.
    It seems they dont make the steering headset seals.
    And i also need a new clutch basket and plates as the basket has some nice big groves in it.

    Cheers everyone!
    Yamaha still do
    http://www.partsfish.com/oemparts/a/...870ac/steering
    the only part discontinied is a washer
    whoops they don't lol
    93102-28234-00

    but here is one
    http://www.speedsupplies.com/parts/y...2-28234-00.htm
    $10

    ok top seal is a std size anyway
    28-37-8 any decent bearing shop should be able to supply

    i think the bottom one may be 30-40-10
    http://www.bearings-direct.com/vmchk...ypage.tpl.html

    failing that look at buying an all balls kit they willl have seals included as well as proper taper roller bearings.

    http://www.allballsracing.com/22-1004.html
    $33 USD inc seals
    Quote Originally Posted by Katman View Post
    I reminder distinctly .




    Kinky is using a feather. Perverted is using the whole chicken

  9. #9
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    2nd February 2017 - 11:27
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    Awesome thanks for your help! I got my hopes up thinking i found some seals and then went to cart to realise there discontinued. Cheers for that ill do a measure up and double check! Now the dam clutch basket is next on the list.

    Also do you guys prefer to powdercoat or paint your frames?

  10. #10
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    Few photos of the old girl

    Click image for larger version. 

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  11. #11
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    Quote Originally Posted by Simintrev View Post
    Awesome thanks for your help! I got my hopes up thinking i found some seals and then went to cart to realise there discontinued. Cheers for that ill do a measure up and double check! Now the dam clutch basket is next on the list.

    Also do you guys prefer to powdercoat or paint your frames?
    Personally after finding that there was an all balls kit I would just buy the all balls kit.
    Shit it looks bloody good nick.
    Quote Originally Posted by Katman View Post
    I reminder distinctly .




    Kinky is using a feather. Perverted is using the whole chicken

  12. #12
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    13th June 2010 - 17:47
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    Quote Originally Posted by Simintrev View Post
    Also do you guys prefer to powdercoat or paint your frames?
    If it's going to be used in anger in VMX, paint so as it can be touched up after the inevitable dings.

  13. #13
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    2nd February 2017 - 11:27
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    Its the same case of does it come with the rights seals as it looks like the ones in photos are just dust seals not the single acting lip seals to keep the water from escaping out the headset. Ive emailed those sites anyway just to double check. Thanks for the quick replys everyone!

  14. #14
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    Quote Originally Posted by Grumph View Post
    If it's going to be used in anger in VMX, paint so as it can be touched up after the inevitable dings.
    Good point! Im almost at painting stage so ill go down to the local shop and sea what would suit best thankyou

  15. #15
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    I have a barrel and head off one of them
    i'm over buckets

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