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Thread: What could be smokin?

  1. #1
    Mudder F er is offline At The Back Of The Pack Arm chair racerFirst time rider
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    What could be smokin?

    When I ride my 200s, after about 20 minutes it smokes. It looks like its coming from the top end. out of the CDI around the cylinder top, around the exhaust. What can cause this?
    Mudder Fu@#er
    85 Auto 200X
    81 185s

  2. #2
    Join Date
    Jul 2003
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    Ontario Canada
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    long shot, but possible, when it heats up totally, the head could expand slightly, and wont be a good enough seal around the head (so possibly a new head gasket??)

    i know its a long shot, but it is possible (i think)

    Curtis
    Currently Trikeless- but I have a LT250R

  3. #3
    Tri-Z Pilot's Avatar
    Tri-Z Pilot is offline Check my feedback before buying from me Got the holeshot
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    Possibly you have a hole in your headpipe, and when the exhaust heats up, it could be burning built up carbon. The only way to really tell is to let it start smokin again and check real close to pinpoint exactly where the smoke is coming from, that would help the fourstroke people on here to help diagnose your problem.
    Current Rides-Soon to be 85 350X, 84 200X
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    86 250SX 85 Tri-Z (yellow) 85 Tri-Z (silver) 86 200x 01 Blaster 99 Blaster 85 ATC250R 86 ATC250ES 84 Tri-Zinger 60 ATC500R Project
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  4. #4
    Bill X_R is offline Bill "The Finger" XR oo|oo Arm chair racerJust too addicted
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    Since you said it was doing after it's hot...I might guess it's just dirt grime and grease burning off. My old 350x smoked like that all the time until I cleaned off the head and valve cover.

    (warning, this is only a thought. I might be correct, I might not. )
    86' 250 R
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  5. #5
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    Quote Originally Posted by Bill X_R
    Since you said it was doing after it's hot...I might guess it's just dirt grime and grease burning off. My old 350x smoked like that all the time until I cleaned off the head and valve cover.

    (warning, this is only a thought. I might be correct, I might not. )
    That would be my first thought too. Alot of the time on the Honda 285's and 200's a little bit of oil will leak from the top cam cover. It can be hard to get it to seal right after having it apart, I have seen this many times. When a little bit of oil gets hot it starts burning off.
    1984 Yamaha YT 60 Tri Zinger(current project)
    1983 Yamaha YTM 200 (rear suspension kit)..... long term project
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    1972 Honda CT 70
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  6. #6
    Mudder F er is offline At The Back Of The Pack Arm chair racerFirst time rider
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    i ordered some new gaskets I will try changing those and give it a good cleaning. Thanks
    Mudder Fu@#er
    85 Auto 200X
    81 185s

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