The XL600 thread

Discussion in 'Thumpers' started by Gregster, Jul 6, 2007.

  1. amf4399

    amf4399 Adventurer

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    Great thanks.
  2. davek181

    davek181 Been here awhile

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    If you are thinking big bore, the largest I know of without doing major mods and using still using original sleeve rebored is the Wiseco 102.4. I ran one in my XL for many miles and years with no problems. I ran it with stock cam and springs etc. It made a noticeable difference in power, with no changes in mannerisms. As they say, there is no substitute for cubic inches. :nod
  3. m2h

    m2h "Old guys rule"

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    Hi. Im in the process of a rebuild on my '86 and have purchased a Wiseco 101 11:1 kit. With the higher compression i was wondering about the need to look at jetting to get the most out of it.
    I live at sea level, temperature range about 5 - 30 deg C. The jetting I have is 108, 65 main carb and 105 in the other.
    Any advise would be appreciated so I can do it while the beast is in bits!
    Thanks
    M2H:freaky
  4. joexr

    joexr Banned

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    If you dont change anything airflow-wise [ filter , airbox or exhaust ] your bike will run richer due to the increased compression.
  5. MartiniUp

    MartiniUp Long timer

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    Hey, we all started out ignorant. When I was born I knew nothing. Now at 67, I know even less!
  6. mcma111

    mcma111 Long timer

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    And it's all down hill from here on. :lol3 :lol3 :lol3
  7. davek181

    davek181 Been here awhile

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    I live near sea level too, but have much larger jets in my 87 XL. 125 primary carb, 118 secondary.

    Bigger bore usually doesn't need drastically different jets, but yours sounds too lean to start with from my experiences.
  8. lookfar

    lookfar from the land of OZ

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    Hmm, I'm a bit more conservative...I started off with nothing, after careful budgeting, I found that I still have most of it left :rofl:gerg
  9. HeadTrauma

    HeadTrauma ¯\_(ツ)_/¯

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    And higher compression will make a lean mixture more likely to ping.
  10. m2h

    m2h "Old guys rule"

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    Thanks all, for the replies I guess I will need to research the thread for some more on jetting . It sounds a bit of a mine field !!
    M2H
  11. RFVC600R

    RFVC600R GOT SAND? NO!

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    I wanna rejet mine but I don't know anything about it. I'm pretty sure I can get more power out of this thing if i changed the jets
  12. RFVC600R

    RFVC600R GOT SAND? NO!

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    So basically I go WOT and shut the engine off and pull the plug for a reading?

    Mine kinda looks like this when I check/change it once in a while

    [​IMG]
  13. Edouard_Bracame

    Edouard_Bracame Adventurer

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    Anyone knows where I could find the white seal wich is installed on the edge of the fuel tank on a XL600 LM?

    Many thanks,

    [​IMG]
  14. mcma111

    mcma111 Long timer

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    How about automotive door edge protector?
  15. joexr

    joexr Banned

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    Car door edge trim at an autoparts store. They usually have it in black , chrome and clear.
  16. davek181

    davek181 Been here awhile

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    I really hate to burst your bubble, but today's gas does not give accurate plug reads. It will show if it is sloppy rich and black and sooty, but otherwise not really at all. The best way of all is a wideband o2 sensor in the pipe. In lieu of that, start with a running combination that someone else has tried and fine tune from there if needed.

    I have tried nealy every jet, slide, emulsion tube, carb synch combo I could dream of over the years. I have finally achieved a point where I think it is as good as I can get with limited parts. I find now that if I change something today, like needle clip position, I generally change it back tomorrow. That is a good sign that I am very close. :1drink

    I did it all with the butt dyno method over several years, I would go months at a time with no change because it was really quit rideable but..... I guess I just can't leave well enough alone if I think I can get better.
  17. TonyfromOR

    TonyfromOR Adventurer

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    I'd be more concerned about who's been shooting at your tank! :eek1
  18. wvspike

    wvspike Adventurer

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    will xr footpegs work on an xl600r?
  19. m2h

    m2h "Old guys rule"

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    Thanks Dave I had the feeling the bike was not getting the gas so i think you're onto it with regards the jetting. I will take your advice and am going to try a 120, 118, 65 combo. Will let you know how it goes. Am still waiting for my conrod to arrive from partzilla:cry
    Regards
    M2H
  20. Edouard_Bracame

    Edouard_Bracame Adventurer

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    I have 4 other tanks in spare don't worry, I even have a brand new one, but the white seal is not installed on it...reason why I try to find it on the aftermarket, anyway if anyone of you guy's can check at the opportunity of a visit to an automotive part shop in the US, I would really appreciate, I have checked here in Thailand but so far for...no success.

    I might try as well when I'll be back to Belgium for Easter vacation next April...but I haven't seen something like this for sale so far...:huh