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Thread: "spring and plunger" in cylinder head

  1. 07-04-2012, 06:19 PM #1
    gbettner
    gbettner is offline Junior Member
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    "spring and plunger" in cylinder head

    Just realized while trying to finish up my complete engine build that there is supposed to be a small spring and plunger that sits right under the camshaft. I didn't notice before now and it's not there anymore. Either I flipped the head upside down when I took it off a couple months ago or it fell off while the machine shop had it.

    Anybody got one laying around you can send me? I can paypal. Thanks
    2002 400ex
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  2. 07-04-2012, 06:36 PM #2
    400exrip
    400exrip is offline Senior Member
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    just FYI. If you ever are running a Hotcam or any other aftermarket cam you will not need that plunger and spring. But if it is a stock cam the bike will not run without it.

    If you cant find anyone with the spring and plunger here are the part numbers.

    Spring: 14126- KV2 -940

    Plunger: 14125 - KV2 -940
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  3. 07-04-2012, 06:39 PM #3
    gbettner
    gbettner is offline Junior Member
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    Thanks, good to know. It's all stock. Tried Ebay with no luck.
    2002 400ex
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  4. 07-04-2012, 08:12 PM #4
    on the rocks's Avatar
    on the rocks
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    you dont need that with hot cam? well crap i ordered one and i have a stage one, hope it never came in lol
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  5. 07-04-2012, 08:22 PM #5
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    TheAwesomehonda
    TheAwesomehonda is offline Senior Member
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    Originally posted by on the rocks
    you dont need that with hot cam? well crap i ordered one and i have a stage one, hope it never came in lol
    The stock cam has the decompessor thing and that why it needs the plunger and spring. Hot cams don't have a decompressor.
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  6. 07-04-2012, 08:23 PM #6
    on the rocks's Avatar
    on the rocks
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    good to know
    trail guide .. cause i lead the way
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  7. 07-04-2012, 08:34 PM #7
    gbettner
    gbettner is offline Junior Member
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    OK so who's got one with a spring laying around?

    I'll call the shop tomorrow if nobody has one but would rather get one from one of you guys with paypal.
    2002 400ex
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