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  1. #1
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    Problems with the carburetor slide . some real solution?

    hi all!
    I have read about the carburetor slide problem. I turn a few degrees to one side and another and I also move the cam of the carburetor but after a while the problem returns and the carburetor does not open at all or sometimes it does not even open halfway. It's funny but when the problem is stopped Is it more noticeable than when the engine is on that the problem disappears? !! Is there a kit currently that solves the disastrous linkcage throttle of slayer? thanks.
    sergi

  2. #2
    Marshal Double G's Avatar
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    Have you replaced the bushings in the bellcrank with bearings?
    Also, you want the screw to hold the bellcrank snug, not wrenched down so that it restricts movement.

    Use this for reference of how to position the carb:
    https://traxxas.com/sites/default/fi...carb_setup.pdf

    Then you'll need to adjust the throttle arm on the end of the barrel to allow the carb to open it fully.
    The Super Derecho

  3. #3
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    Quote Originally Posted by Double G View Post
    Have you replaced the bushings in the bellcrank with bearings?
    Also, you want the screw to hold the bellcrank snug, not wrenched down so that it restricts movement.
    many thanks double G for the pdf!!
    mmm I do not know what bellcrank bushings bearings you mean, lol
    those bearings are mounted in some throttle linkcage part?
    thanks!
    sergi
    Last edited by sergipaps; 05-20-2019 at 04:13 AM.

  4. #4
    Marshal Double G's Avatar
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    The bellcrank is what the linkage from the servo is attached to which changes the front/rear motion to left/right motion and slides the carb in and out.

    Take a look at the exploded views and you'll see there are bushings in there with a part number for optional bearings.
    The Super Derecho

  5. #5
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    Quote Originally Posted by Double G View Post
    The bellcrank is what the linkage from the servo is attached to which changes the front/rear motion to left/right motion and slides the carb in and out.

    Take a look at the exploded views and you'll see there are bushings in there with a part number for optional bearings.
    thank you very much double g now I know what piece you tell me hehe. I have take a looked at the exploded view, the reference is 5114.
    thankssss
    sergi.

  6. #6
    RC Competitor
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    Double G, I don't know how to ask a question with out going on the forum. Is the bearing that much better that the bushing, or is it something only a racer wou!d notice. Thank in advance.
    Slayer Pro, Slash VXL 4x4, Jato 3.3, Rustler 2.5

  7. #7
    RC Qualifier nebulous.cow's Avatar
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    The bushings could cause issues everyone would notice. I still have the bushings in my relatively new Revo (built the same as the slayer) and when it becomes an issue, I will first apply some graphite or other dry lube to it first, but Double G is right, bearings are the real fix.

    Fine tune the angle the carb is actually mounted in the engine as well, as well as the angle of the throttle arm with the ball link on it on the carb. It can greatly reduce binding. If this is the problem, the bearings won't solve this issue.

    -Mike

  8. #8
    RC Turnbuckle Jr. olds97_lss's Avatar
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    Quote Originally Posted by Slush View Post
    Double G, I don't know how to ask a question with out going on the forum. Is the bearing that much better that the bushing, or is it something only a racer wou!d notice. Thank in advance.
    After a short time, the bushings wear, which causes slop and binding. Having bearings keeps the pivot running true for a lot longer without binding or gaining slop. With so little available movement, slop in the linkage/pivot really throws a monkey wrench into it and also makes the pivot put the pressure on the carb slide at a different angle as it wears, which also leads to binding.

    In that same vein, I replace the rod with a z-bend in it with a threaded rod that I put a ball end on, which also helps reduce slop over time:


    Easier to do with the stock roll bar as it's just a straight piece of threaded end wire. I had to monkey with mine a bit and modify the servo box to get around my 4 point roll bar I use.
    Last edited by olds97_lss; 05-29-2020 at 09:36 AM.
    https://www.youtube.com/c/olds97lss

  9. #9
    RC Competitor
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    Nicely worded and photo's, olds97_lss. A great place to start.
    Slayer Pro, Slash VXL 4x4, Jato 3.3, Rustler 2.5

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