Beta EVO Thread

Discussion in 'Trials' started by garrett, Sep 6, 2014.

  1. LemmeTry

    LemmeTry Over-thinker...

    Joined:
    Jan 27, 2016
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    283
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    Bozeman, MT
    LOL I figured. :D What I'm not familiar with is what elevations to run the regular vs the high altitude carb springs; gotta know what point in the trail I need to stop and whip out the other spring. haha
  2. jaylude

    jaylude Been here awhile

    Joined:
    Jul 27, 2010
    Oddometer:
    306
    Location:
    Central CT
    Quick question - noticed the front sprocket on my Beta "wobbles" a bit more than I'd expect. I'm mainly experienced with wrenching on dirt bikes, but on them, there's no where near this amount typically. I popped the sprocket off and looked at the countershaft itself, and don't see any suspect wear. Sprocket teeth look decent too. I see that the Beta uses a setup with opposing c-clips to locate the sprocket. I'm wondering if this accounts for the wobble? Do the c-clips themselves wear over time? Or does that system with "non-rigid" c-clips just inherently wobble a bit? Perhaps it just needs a new sprocket and c-clips?

    I uploaded a clip to better show what I'm seeing here:



    20190815_172030.jpg

    20190815_172320.jpg
  3. slicktop

    slicktop Been here awhile

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    Buy a aftermarket sprocket.
  4. lineaway

    lineaway Long timer

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    slicktop likes this.
  5. slicktop

    slicktop Been here awhile

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    That's right. And if rear sprocket is side loaded it won't transfer to motor.
  6. jaylude

    jaylude Been here awhile

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    Jul 27, 2010
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    Central CT
    Thanks for the input. I definitely understand that the sprocket will essentially straighten out once it's loaded by the chain, and only transfer the chain forces to the usual intended contact points between the sprocket and countershaft spline. My brain just tells me that extra slop in the play has a potential to wear the countershaft faster due to rubbing during any axial movement or rotation of the gear, which is why I made the post. I also checked my GasGas 280 Pro and there's only the usual very slight wobble, as with most offroad dirtbikes.

    So are you guys seeing the same wobble on your Beta sprockets as well?
  7. steadfast

    steadfast Adventurer

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    Jan 16, 2017
    Oddometer:
    84
    What’s everyone’s preferred mix ratio? I just picked up a 2016 evo 250 factory and I believe it was being run at 80:1.
  8. 2whlrcr

    2whlrcr gooligan

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    yes
    wheelieman14, slicktop and Nobade like this.
  9. alpineboard

    alpineboard Been here awhile

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    Mar 2, 2016
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    663
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    New Hampshire
    This has approx. 100 hours of slow ride on it. If found, have one with 200 hours, and looks the same. I looked at it with a magnifier and could not see any wear on the internal tines. I also questioned this movement when getting a beta. Ride it, you will be fine. 0818190855-00.jpg
    jaylude likes this.
  10. jaylude

    jaylude Been here awhile

    Joined:
    Jul 27, 2010
    Oddometer:
    306
    Location:
    Central CT
    Thanks for the input. I think it appears to be a function of the double C-clip they use on the countershaft. I might just get new C-Clips next time I place an order and see if it reduces the wobbling any.
  11. rokhopr

    rokhopr 2015 Beta 250 Factory

    Joined:
    May 28, 2007
    Oddometer:
    128
    Location:
    Owasso, OK
    I gotta say running the JJJ, 52 and 120 worked great for my 2015 Beta 250 2T at 6,600 (Turkey Rock, CO), 8,200-9,200 (Sipapu, NM) and 9,200-11,200 (Ute Cup).
    Nobade and wheelieman14 like this.
  12. lineaway

    lineaway Long timer

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    2020 models are out.

    Attached Files:

  13. Gordy

    Gordy SUPPORTER

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    :snore
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  14. 2whlrcr

    2whlrcr gooligan

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    Looks like Beta and Honda have the same market philosophy. BNG...
  15. slicktop

    slicktop Been here awhile

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    If Honda made a 2t.
  16. alpineboard

    alpineboard Been here awhile

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    Mar 2, 2016
    Oddometer:
    663
    Location:
    New Hampshire
    I broke my 2015 Beta Evo Factory handlebar clamp, it broke at the pin junction (see pic) , I have been searching plenty, am contacting V-Mar, thinking they have a solution of the Non Pin type. The raised ridge on top triple may or may not make a difference, raised ridge flat is 0.625" wide.
    Has any one dealt with this fix, and made it stronger than the pin type? Bike has under 50 hours. 64418628_2526606504037367_4801294612499005440_o.jpg 0920191115-00.jpg Thanks.
  17. Razor85

    Razor85 Adventurer

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    Mar 16, 2011
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    50
    Why does the kickstarter never line up with the indentation on expansion chamber? Always wanted to know.
  18. rokhopr

    rokhopr 2015 Beta 250 Factory

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    May 28, 2007
    Oddometer:
    128
    Location:
    Owasso, OK
    Curious how that happened? I've got 600 hours on 2015 EVO Factory and no issues like that to date.
  19. alpineboard

    alpineboard Been here awhile

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    663
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    New Hampshire
    I have been riding some 2 to 3 foot rocks that have a pretty sharp incline, holding pressure and coming down gently, doing this over and over, like 40 times in an evening ride. Over the past 2 weeks every night.
    One small clue was a slightly not tight left hand bottom mount screw, so if the left side mount has a bit of float, the right side which is the pivot point will break....? I could not feel any loose bar/movement, before it broke. I think I will try to replace mount /clamp with a split kind with 2 screws.
    rokhopr likes this.
  20. heffergm

    heffergm Adventurer

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    May 23, 2019
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    46
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    USA
    The pins are rusty. Rusty metal expands.