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Valve shim needed. What kind?

Discussion in 'XJ Technical Chat' started by fishinchickens, Jun 15, 2013.

  1. fishinchickens

    fishinchickens Member

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    I am in need of a 2.55mm valve shim. I have made calls to various Yamaha shops and have been been told about several different options. Should I go with an o.e. shim or an aftermarket shim?
     
    fishinchickens, Jun 15, 2013
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  2. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

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    PM me......I have a shim pool. I have two 255's right now. Doesn't matter if you use OEM or aftermarket

    PM and I'll get details to you.

    Hm......Yamaha shops are giving you various options? About the only option you have is: oem or aftermarket--- I guess the other option would be to not swap the shim, which wouldn't be a smart option. LOL

    Dave Fox
     
    hogfiddles, Jun 15, 2013
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  3. Tat2demon

    Tat2demon Member

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    They will all work the same as long as theyre 29mm.
     
    Tat2demon, Jun 15, 2013
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  4. sektorgaz

    sektorgaz Member

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    I had to take off a few 0/1000mm from the 29mm diameter shim today, a little too wide to fit in the bucket.
     
    sektorgaz, Jun 16, 2013
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  5. irritateddave

    irritateddave Member

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    HOLY CRAP!!!! You can do that??!!!!
     
    irritateddave, Jun 16, 2013
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  6. bigfitz52

    bigfitz52 Well-Known Member Premium Member

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    Not really.
     
    bigfitz52, Jun 16, 2013
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  7. sektorgaz

    sektorgaz Member

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    It was an aftermarket shim that was wider than oem, it needed precision tailoring to fit nice and snug lol
     
    sektorgaz, Jun 16, 2013
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  8. mtnbikecrazy55

    mtnbikecrazy55 Active Member

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    That sounds so sketch. It's seriously not worth skimping the money to rig up some ghetto shit.

    Hit up Dave.
     
    mtnbikecrazy55, Jun 16, 2013
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  9. JPaganel

    JPaganel Well-Known Member

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    It might have been a 29.5mm shim instead of a 29mm shim. Those are for Suzuki, I think. I got one of those with some shims I bought from a shop. Aftermarket shims are the same 29mm as the original ones and don't need any grinding.

    Given your username, I think you might be using a Jawa fixing technique. :D

    http://www.youtube.com/watch?v=iDvCxus8SSg
     
    JPaganel, Jun 16, 2013
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  10. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

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    Then either that was a wrong size shim to begin with, or it was a wrong shim to begin with.............
     
    hogfiddles, Jun 16, 2013
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  11. sektorgaz

    sektorgaz Member

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    Yeah, you got the right idea 8O Xoi jiv!

    It was a 29mm shim, checked with the caliper. I think the shim retainer has gotten tight over time. The original shim it replaced was smaller - about 28.85mm
     
    sektorgaz, Jun 16, 2013
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  12. MidniteMax

    MidniteMax Member

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    Just found that out about the Suzuki shims today. I have a 1982 Suzuki GS850L for parts and tried to see if those shims fit my Maxim. Nope. Just a tad too large.
     
    MidniteMax, Jul 15, 2013
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  13. bigfitz52

    bigfitz52 Well-Known Member Premium Member

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    Wait... I HAVE IT!

    It was the wrong size shim to begin with. 8O

    You can't grind shims. Let's don't even hint that it's a good idea when it's not. Use the right ones.
     
    bigfitz52, Jul 15, 2013
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