1981 Honda XR500R

Discussion in 'Thumpers' started by brucifer, Jan 6, 2011.

  1. Eric318

    Eric318 XR500, only

    Joined:
    Apr 3, 2010
    Oddometer:
    39
  2. 2manyrides

    2manyrides shifty charactor

    Joined:
    Aug 17, 2008
    Oddometer:
    1,740
    Location:
    Citrus Heights Ca.
  3. Eric318

    Eric318 XR500, only

    Joined:
    Apr 3, 2010
    Oddometer:
    39
    It's a nice looking XR. Not many in that condition. Lets see what the market will give...
  4. shvlhdrider

    shvlhdrider n00b

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    Aug 5, 2012
    Oddometer:
    3
    wow thanks for the fast reply, it was exactly what i was looking for
  5. shvlhdrider

    shvlhdrider n00b

    Joined:
    Aug 5, 2012
    Oddometer:
    3
    so i have been riding my 1981 xr500r for about two months now and decided to put som premium 92 octane gas in it and what a difference however i was told by an old timer that this was somehow bad for the motor but i cant find anyhting online about it being bad for older motors with the proper compression ratio's. any one care to comment?
  6. Eric318

    Eric318 XR500, only

    Joined:
    Apr 3, 2010
    Oddometer:
    39
    I would be very surprised that 92 octane fuel turned out to not be good for these motors.
    Back in the early eighties leaded gas was the standard in the most of Europe and the octane was at that level.
  7. Eric318

    Eric318 XR500, only

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    Apr 3, 2010
    Oddometer:
    39
    Did you get your shock done? I am thinking of sending one also.
  8. brucifer

    brucifer Long timer

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    Nov 27, 2007
    Oddometer:
    2,592
    Location:
    Eureka, Ca.
    Been a while since a thread bump.


    Getting a well deserved oil change.
    [​IMG]
    I think it's about time to do something about the oil seepage.
    [​IMG]
    [​IMG]
  9. Eric318

    Eric318 XR500, only

    Joined:
    Apr 3, 2010
    Oddometer:
    39
    Nice well aged bike!

    The oil seepage is a typical ailment of these motors. I have never seen one without it :)

    To sort it out, you will need to take the motor apart. DONT just tighten the cover bolts
    Enough doing so, the seepage will come back....

    In the short term, you can save some mess by putting some sealer on the outside of the seepage area after thorough cleaning to remove all traces of oil.

    Good luck.

    E
  10. brucifer

    brucifer Long timer

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    Nov 27, 2007
    Oddometer:
    2,592
    Location:
    Eureka, Ca.
    Hey Eric. Yeah, I'm pretty "intimate" with these bikes having owned three over the years and working on many more. I bought my first one--an '82--new in late 1983 when I was 18 or 19.

    My problem is leaving it stock when I pull it apart to fix it. :lol3 It's like "well, I have the rocker cover off may as well pull the head...now the heads off, why not pull the barrel and install a big-bore piston kit. Probably need a cam to help the new cubes work and why not a carb, pipe...etc." :evil
    The thing runs so darn good right now I just hate to pull it apart to fix a leak. But it has to be done.
    It's gonna take some restraint on my part to JUST...FIX...THE...LEAK. :lol3
  11. Eric318

    Eric318 XR500, only

    Joined:
    Apr 3, 2010
    Oddometer:
    39
    Yes, once you are in there, it is tempting to just keep going :)
  12. jmessana69

    jmessana69 Enthusiast

    Joined:
    Feb 3, 2013
    Oddometer:
    2
    Location:
    Australia
    Hi Everybody, I'm new to this forum, I’m currently rebuilding a 1981 Honda XR 500 and was looking around for period correct aftermarket options and found this forum and photos during some internet research. I'm really enjoying reading about the knowledge, experiences and advice. Can anybody tell me anything about the White Brothers swing arm & Ohlins shock seen in some of the photo's (Eric318 I think) I would be very grateful if anybody could help answer some of my questions?
    Does the swing arm give you better handling?
    Is it lighter than the original steal swing arm?
    They say they are 1-1.5 inches (38/39mm) longer than the original – is this correct?
    Are they still being made or is anybody reproducing them?
    Is the Ohlins shock longer than the standard rear shock?

    Thanks.
  13. Eric318

    Eric318 XR500, only

    Joined:
    Apr 3, 2010
    Oddometer:
    39
    Hey welcome.

    You will have a hard time finding somebody with extensive first hand experience of this set up...

    Does the swing arm give you better handling?

    That is the idea

    Is it lighter than the original steal swing arm?
    Oh yes!

    They say they are 1-1.5 inches (38/39mm) longer than the original – is this correct?
    Yes (who is they?)

    Are they still being made or is anybody reproducing them?
    No

    Is the Ohlins shock longer than the standard rear shock?
    No

    You will find more info here if you have the patience to go through it all and put up with a little French ;)

    Also here: www.xr500only.com

    Lets us know how you progress.

    Cheers,

    E
  14. jmessana69

    jmessana69 Enthusiast

    Joined:
    Feb 3, 2013
    Oddometer:
    2
    Location:
    Australia
    Hi, thanks for your reply and information, I get it now after going to your links, who is they? It would be you, please pardon my ignorance. I will definatley keep you informed of my progress (which will be slow - wife and son get first priority on funds)
    Thank you
    Jason
  15. brucifer

    brucifer Long timer

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    Nov 27, 2007
    Oddometer:
    2,592
    Location:
    Eureka, Ca.
    Took it out today to blow out some cob webs and get a little muddy.

    [​IMG]
    [​IMG]

    Man, I LOVE this bike for trails. It's SO comfortable! Soft suspension, soft seat--so what if it bottoms out off of 18" water bars. :lol3
    This thing just works for me in the woods. For casual to moderate speeds, it's awesome. And----it's one heck of a wheelie bike. :clap
  16. Eric318

    Eric318 XR500, only

    Joined:
    Apr 3, 2010
    Oddometer:
    39
    Ah, very nice!! Well done. Your bike looks like it is a year old!! Well done.
    Go XRR, go.... :)
  17. brucifer

    brucifer Long timer

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    Nov 27, 2007
    Oddometer:
    2,592
    Location:
    Eureka, Ca.
    Hi Eric! :wave

    How's everything with your bike?
  18. Eric318

    Eric318 XR500, only

    Joined:
    Apr 3, 2010
    Oddometer:
    39
    Ah man, got a 591cc kit with ported head from EdCo at the summer and then some bad stuff happened to me (work + family) so all is on hold. Will get back to toys in 6 months time...
    Be well and have fun.
  19. brucifer

    brucifer Long timer

    Joined:
    Nov 27, 2007
    Oddometer:
    2,592
    Location:
    Eureka, Ca.
    As much as I hate to do this, I've put the old gurl up for sale. :cry
    If any of you guys would be interested in it please PM me.
    I would really like to see someone who appreciates these bikes get it than just some schmoe off of CL.
    I have it listed for $950.00 there but would definitely go lower for one of you.

    *EDIT* Never mind, ain't gonna happen. lol. I just can't do it.
  20. izom

    izom Been here awhile

    Joined:
    Jun 9, 2006
    Oddometer:
    421
    Location:
    LandofArnoldS/Vienna
    hi guys - whats up there - in california and elsewhere!? ;-))

    another year goes buy and i put my s10 and my ktm in the garage- now winter is coming- thats XR TIME !!!!:D

    xr still running/startin strong- just oil change this year!
    btw. fixed my little oilleak with DIRKO HT from outside lasts since last winter so far...;-)

    glad u didnt sell yours bruce!!

    nice homepage eric !!

    greetz from europe !!

    peter

    maybe some pics will follow...

    PS- can someone send me pics of the 2(blue?) cables running from the stop switch to the ?? behind the lightmask!?

    had a starting key/lock there but removed it for a simple stop switch (like original?) but cant stop the motor think took the wrong cables....

    Attached Files: