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Thread: Exhaust leak - seal question

  1. 10-14-2013, 05:56 PM #1
    NO-SCALES's Avatar
    NO-SCALES
    NO-SCALES is offline At The Back Of The Pack Arm chair racerFirst time rider
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    Exhaust leak - seal question

    Where the head and pipe meet, i have a bad leak. Do both #7 and #8 need to changed or could it be just one or the other???


    Thanks for the help

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    85 Honda 250sx- STILL IN PIECES!!!
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  2. 10-14-2013, 06:56 PM #2
    Dirtcrasher's Avatar
    Dirtcrasher
    Dirtcrasher is offline Power User Catch me if you can
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    What are their description?

    Is one just a retaining ring for the seal?

    Did ya take it apart?
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  3. 10-14-2013, 07:02 PM #3
    dave ytz250s
    dave ytz250s is offline First Time Rider Arm chair racerNew to the board
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    Your springs could also be getting weak.
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  4. 10-14-2013, 07:02 PM #4
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    poohbee1
    poohbee1 is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    replace 7 and 8 with new clean the exhaust flange and pipe spotless to bare metal then use permatex high temp silicon the orange not red. I got this from the ct racing website and worked great for me.
    Last edited by poohbee1; 10-14-2013 at 07:15 PM.
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  5. 10-15-2013, 12:03 AM #5
    NO-SCALES's Avatar
    NO-SCALES
    NO-SCALES is offline At The Back Of The Pack Arm chair racerFirst time rider
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    Havent taken apart yet. One was a ring and one a gasket. Wasn't sure if msube just the gasket needed changed or both. Looks i need to change both

    Thanks
    85 Honda 250sx- STILL IN PIECES!!!
    84 Honda 185s - traded off
    85 Yamaha 225dr - parts machine for now
    83 Yamaha tri-zinger 60cc - my sons first 3wheeler. $300 for zinger, $4000 for a broken leg, memories for a life time - PRICELESS
    85 Honda Big Red 250es - traded off
    86 Honda 250r - traded off
    85 Kawasaki Tecate - new toy
    84 Honda 200m - super clean puttin around toy
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  6. 10-15-2013, 12:42 PM #6
    Rigaman
    Rigaman is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    Sometimes 2 strokes just puff smoke out of the head. Out of all the 2 strokes I've owned only a couple would seal up with just oem stuff. To really seal it up you need good springs and some sealant like rtv. High temp stuff.

    Pipes get worn from the vibrations over time too. I've taken off pipes that the cuff was oval instead of round. Also. Aftermarket pipes don't always fit like oem. The thing I love about the 250r is the flange is replaceable. The 250rs always seem to seal up pretty nice.
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  7. 10-15-2013, 05:08 PM #7
    Dirtcrasher's Avatar
    Dirtcrasher
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    Quote Originally Posted by poohbee1 View Post
    replace 7 and 8 with new clean the exhaust flange and pipe spotless to bare metal then use permatex high temp silicon the orange not red. I got this from the ct racing website and worked great for me.
    What is the orange? Never saw orange, just hi temp red.....
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  8. 10-15-2013, 05:15 PM #8
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    yaegerb
    yaegerb is offline yaegerb The day begins with 3WW
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    oil splooge is a given, especially if you are going to run higher oil concentrations; e.g. 36:1 and below. One thing I have been looking at getting and have heard great things from other people is this billet exhaust flange from ESR (I have been told it effectively eliminates the splooge factor). Link Below.

    http://www.eddie-sanders-racing.com/...t%20flange.htm
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  9. 10-15-2013, 06:20 PM #9
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    http://www.permatex.com/products-2/p...-gasket-detail orange
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  10. 10-15-2013, 06:25 PM #10
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    Jason125m
    Jason125m is offline Power User Got the holeshot
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    I put brand new ring, and brand new gasket in my stock flange. Aftermarket pipe, doesn't leak the tiniest bit of smoke or splooge. However, if it was leaking, I would use the orange sealant poohbee suggested.
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