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Thread: Valve lash

  1. #1
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    Valve lash

    What is the valve lash spec for the ultra 300 exhaust cam/ Webs are .010" to .012"


  2. #2
    Just for curiosity.

    How many hours on the engine?
    Who's doing the adjustment, you or shop?

  3. #3
    nicjak's Avatar
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    he is a shop chaz!

  4. #4
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    Fresh head. We are not doing the adjustment. Customer shimming it. Apparently Kaw has lash spec up to 1/2 mm. Nitro top fuel doesn't run that much.

  5. #5
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    According to the book

    Exhaust = .47-.55mm or .0185-.0217 inches
    intake = .15-.24mm or .0059-.0094 inches

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