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Thread: suddenly NO compression!! any ideas?

  1. 06-30-2006, 01:49 PM #1
    SWEATHOG
    SWEATHOG is offline Junior Member
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    suddenly NO compression!! any ideas?

    My 03 Honda Rancher 350 always started ezy ran good. Then without warning wouldnt start, chesked spark, fuel etc. then found it has "0" compression. Maby the decomp. stuck open, where is it,how do i check it?? The owners manual says "the compression release is activated when starting"
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  2. 06-30-2006, 02:12 PM #2
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    GPracer2500
    GPracer2500 is offline Registered User
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    The decomp mechanism is on the end of camshaft. Being a pushrod engine, the camshaft is in the crankcase.
    "It ain't what you don't know that gets you into trouble.
    It's what you know for sure that just ain't so. "
    --Mark Twain
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  3. 07-01-2006, 08:43 AM #3
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    Iliketogofast
    Iliketogofast is offline Shut up and dance!
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    I don't think you have the checker in there right. There has to be some compression.
    Jeff

    2008 Yamaha Raptor 700

    2003 Honda CBR954RR
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