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Thread: 84 200x engine noise and smoking

  1. #1
    Join Date
    Apr 2020
    Location
    iron range Minnesota
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    1

    84 200x engine noise and smoking

    I have an 84 200x, i did a cam chain three years ago and looks like its time for a new one. Started it up yesterday and it had a really loud knock in the top end worse than the usual tick you hear. And it did not have the noise when i rode it the day prior. The chain is loose and the cam has a lot of play where it rides in thd head. Is there anything that can be done other than a new head and chain to fix the cam play? Also the wheeler leaves a cloud of smoke behind it, ive tried rings, valves and valve seals head gasket. Could the valve guides make it smoke?

  2. #2
    Join Date
    Mar 2010
    Location
    Slidell, LA
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    4,737
    Could be a number of things. Sounds like it’s time to take the motor completely down. I would rebuild the crank, new piston with bore and hone to match and then get a new cam, timing chain, etc.
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