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Thread: 65u head

  1. #1
    kodez's Avatar
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    65u head

    Ok fellas, I have searched high and low on this forum and have found nothing about what model/brand head I have purchased. I will post pics as soon as I figure out how to do it. The top of the head has three pisser outlets, it is machined out of a block of aluminum, where the spark plug holes are it has a saw blade design and the domes are stamped with s/n y834s. I also have the riva head and was wondering if the domes are removable, they are stamped 38cc but it looks like the number two cylinder may have broken a ring cuz it's just a bit chewed up. Would it be ok to take a bit of emery cloth and try to smooth out the nicks or should I simply buy another dome if it's removable. Thanks for any help and like I said I'll post pics later.

    ---------- Post added at 10:39 PM ---------- Previous post was at 09:21 PM ----------



    ---------- Post added at 10:51 PM ---------- Previous post was at 10:39 PM ----------



  2. #2
    I wanna go FAAAAASTer!! CDW78's Avatar
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    Kinda wondering the same with my 65u gp1200 stock head, see pics.... wish I could help ya, but there again, I am at a loss myself!
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  3. #3
    Moderator OsideBill's Avatar
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    Looks similar to an ADA head. Then looks like someone post machined their own pattern in it. http://www.adaracing.com/personal-wa...illet/ya1200ss

    ---------- Post added at 09:21 PM ---------- Previous post was at 09:19 PM ----------

    The Riva Domes are removeable, yuo can clean all the high spots down use it but better off with new.

  4. #4
    I wanna go FAAAAASTer!! CDW78's Avatar
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    Any one have any advice for me on these 2 heads from both Gp12's ? Not sure what to do, replace or repair or reuse in the shape they are in?
    I can get better pics if needed.... THANKS!

  5. #5

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    This I believe is a MSD/Twist Engineering head. I'm Not positive but it might have been a private label product through ADA. I'll need until Tuesday or Wednesday to confirm if my memory is correct. Or maybe one of the other old timers will confirm what I'm saying is correct. Sorry busy with work.

  6. #6
    Moderator OsideBill's Avatar
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    Pull one of the domes out of that head, so we can see the back side of it.

  7. #7
    Yamaha artisan Cutlass's Avatar
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    Wink

    Quote Originally Posted by CDW78 View Post
    Any one have any advice for me on these 2 heads from both Gp12's ? Not sure what to do, replace or repair or reuse in the shape they are in?
    I can get better pics if needed.... THANKS!

  8. #8
    I wanna go FAAAAASTer!! CDW78's Avatar
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    Quote Originally Posted by Cutlass View Post
    LOL - No, just borrowing
    As many other question as I have in my 1200 thread - figured I'd ask here too, since it applied to the 65u I need help with!

  9. #9
    kodez's Avatar
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    I will post more pics of the domes and such once I get home. Thank you all for the help.

  10. #10
    kodez's Avatar
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    Ok here are the latest pics, sorry for the delay, work can be a pita sometimes.





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