Call all XR600R!!!

Discussion in 'Thumpers' started by CSMonte, Dec 8, 2008.

  1. Royal Club

    Royal Club Been here awhile

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    Thanks mrfixit! When I got mine it was a piece of trash..

    Did a little fine-tuuuuuuuuning on the mixture/CO screw on the FCR. The XR takes quite a while to heat up properly, but now when its warmed up it picks up pretty good allready and drops back to idle pretty fine. Now we wait for the dyno run and see some figures:deal
  2. MentalGuru

    MentalGuru Crazy Diamond

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    Thats what I want for my next XR... :evil [​IMG]


    :freaky
  3. mrfixit54016

    mrfixit54016 Wisconsin Dual Sporter

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    My current 1985 XR was a bit-o-trash when I got it too:

    [​IMG]

    But later she looks like a new bike:

    [​IMG]
  4. Royal Club

    Royal Club Been here awhile

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    Got mine in same ish state..

    [​IMG]

    [​IMG]
    pic does make it look better than it actually is lol.
  5. elsalvadorklr

    elsalvadorklr southern xr rider

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    Hey dudes since Im a convert I just wanted to let you guys know that they are selling the exact same carb I have and that xrsonly sells at a nice profit in ebay at a very special price of $157!

    here they are:
    http://www.ebay.com/itm/Mikuni-TM38...Parts_Accessories&vxp=mtr&hash=item231583a762


    the only difference is that it does not come with the intake adapter...but thats pretty much a sleeve they put on...so you could have one made or get one.

    comes with the exact same jets and needle and needle jet the xrsonly comes with except that Im not 100 percent sure on wether its bored out, Im not sure mine is either but at this price it be nice to play around with...

    Its no fcr41! pumper but its halfway between the oem carb and a pumper...

    my performance is pretty damn good now, and you get the benefits of a dual float system that makes stalling and deflooding much easier, etc...

    just thought Id put the word out dudes!

    christian
  6. Royal Club

    Royal Club Been here awhile

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    Aint that a 2stroke carburettor?
  7. Cumbacheech

    Cumbacheech XRated

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    Royal,

    Which handle bars & what bend do you have on the bike?
  8. elsalvadorklr

    elsalvadorklr southern xr rider

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    yes

    but if you read a bit youll find out it was used a lot on many fourstrokes...ballards WON like 6 asutralian safaris on a slightly modded tm38 flatslide...on his xr600

    PS. Xrsonly sells a kit for our bikes NEW for only $260, comes bored, with jets, throttle and new cable...also the intake adapter I speak of

    they are cheap because they are more simple in design, have less metal parts and initially were designed for 2 strokes, they are also on a million bikes...meaning price is lower...how many bikes can you name off hand with a 38mm keihin roundslide like our bikes have stock?

    mikuni flatslides right off the bat, bmws, kawasaki triples, etc...the list is long!

    even the atk605 came stock some years with a mikuni flatslide on the XR600 ENGINE...look at the complete atk thread for proof!

    cheers dudes:D
  9. joexr

    joexr Banned

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    The Kaw triples ARE 2 stroke. Notice the air , not fuel screw - 2stroke. 1 cable -2stroke. The vacuum of a 4stroke can hold the slide open.
  10. Royal Club

    Royal Club Been here awhile

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    Yeah, I believe you if you say so, but those carbs don't have a push cable.. Ain't that a bit tricky? For competition use i'd understand, you'd want as less friction as you can get from your throttle pull. but on the streets? meh... :eek:

    On another note, received my 'newer' XR shock today! 50euros shipped. P.O. Couldnt tell me about the VRS (ven racing suspension sticker that came with. I'd just take it as a proof of rebuild.

    [​IMG]
    [​IMG]
  11. elsalvadorklr

    elsalvadorklr southern xr rider

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    i know

    what your point?

    tell that to geoff ballards

    after all a carb is simply a metering tool for air and fuel...

    not trying to cause a discussion here but a lot of people are having issues with their stock carbs from wear...for very cheap you can get a better performing and new carb...

    just trying to help

    go over on tt and check out the many threads on flatslides...a new one calles xrsonly carb kit...

    all good bros!

    p.s. if you care to read there are many mikuni flatslide tuning pages on here...my carb has the air screw towards the back of the carb and is tuned much in the same way our stock carbs are tuned...in is rich and out is leaner, the reverse of the stock carb.

    cheers
  12. elsalvadorklr

    elsalvadorklr southern xr rider

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    guys the push pull vs pull only has been beaten to death...

    suffice it to say the even the flatslide has a spring loaded FLATSLIDE that will shut it down even if you cut your cable...

    man hard sell

    oh well

    who wants a rebuilt and beatiful stock kehin carb

    first $250 gets it!:deal:deal:deal:deal:deal:deal:deal:deal:deal:deal

    jajajajajajajajajaja
  13. Royal Club

    Royal Club Been here awhile

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    O.K.

    Didnt know that, I believe you!

    Now I want you to believe in me and somehow with that knowledge send me an stainless performance header plox!
  14. elsalvadorklr

    elsalvadorklr southern xr rider

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    dude at this point Id sell you mine...they are restored and polished! jajaja

    lemme know

    I dont have time or money to save up for a twin exhaust muffler...

    so I BELEIVE IN YOU!:D
  15. brucifer

    brucifer Long timer

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    Christian, I used a TM38 on my XL600R/XR650L hybrid bike when the stock 650L engine was in it. It worked killer. I'm more than likely going to use it on my plated '95 XR600 if I ever get the top end back from my frickin' machinest! lol
  16. elsalvadorklr

    elsalvadorklr southern xr rider

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    jejeje hey bruce, been reading a lot of your old posts over on tt, tm38 included

    I for one would love to know what you end up with both jetting wise and engine mod wise

    yeah its a killer carb once you tune it a bit...

    lastly

    here is the one thing that does it for me with this carb

    while running lean it over on the street...it wont die

    do that with the oem carb and post back guys..aint gonna happen and the reason is a dual float system that will keep correct fuel in the bowl(correct pressure on float valve) even at extreme angles...

    the fcr41 is another great performer in this regard

    cheers bruce!!

    christian
  17. creaky

    creaky Been here awhile

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    I have a '96 XR400 in the garage fitted with a TM36 that has been on it since '97, never a problem, only repair was the float needle and seat last year. BIG improvement in performance across the board.
  18. motomike14

    motomike14 Thumper Crusader

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    XR650R has a 17mm front axle, correct? And, pre-88 XR6 had the 15mm axle, correct?
  19. mcma111

    mcma111 Long timer

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    Up to 1992 the front axle on a XR600 is 15mm. From 1993 on the axle is 17mm.
  20. beechum1

    beechum1 Grimace Soup

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    If you want the rebuild guides, I have them ony google docs. They are public domain and not copyrighted and may be freely distributed. If you want them just say so and I (or anyone else that has the links or docs) can send you the links.