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Thread: 125m help

  1. #1
    dman10's Avatar
    dman10 is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    125m help

    I have a 85 125M that a kid wants to come look at Sunday. I need help getting it started.
    It has bad rings, or at least it burnt and drained a lot of oil. But ran last time I started it.
    I'm getting fuel(brake cleaner, and I'm getting spark, weak spark, but spark.
    But it won't start. What am I missing?
    Quote Originally Posted by tri again View Post
    Cool stuff seems to happen when I'm sleeping.
    Nice to know things happen without me.

  2. #2
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    The plug wife may have corrosion. You should unscrew it. Clip off 1/2" and rescrew the plug cap back onto the wire.
    Bad rings? Top end rebuild?


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  3. #3
    dman10's Avatar
    dman10 is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    I'm not doing a top end rebuild, I'm not putting any money into a machine that I'm not going spend money on a machine I'm not getting from money from. I just need it gone.
    Quote Originally Posted by tri again View Post
    Cool stuff seems to happen when I'm sleeping.
    Nice to know things happen without me.

  4. #4
    dman10's Avatar
    dman10 is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    Got it sparking plenty good, plenty of fuel, and plenty of air, but still wouldn't fire, rings must be that bad.
    Quote Originally Posted by tri again View Post
    Cool stuff seems to happen when I'm sleeping.
    Nice to know things happen without me.

  5. #5
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    Sounds like compression has tapered off
    "Roll on 3"

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  6. #6
    dman10's Avatar
    dman10 is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    Yeah, I'll probably tell the kid sorry, and then put it off to the side and let it wait a little longer.
    Quote Originally Posted by tri again View Post
    Cool stuff seems to happen when I'm sleeping.
    Nice to know things happen without me.

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