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Thread: Trying to repair exhaust flange on 85' 250R

  1. 10-17-2008, 03:40 PM #1
    NewfieBish's Avatar
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    Trying to repair exhaust flange on 85' 250R

    Hey all, someone was saying on this to me a while ago about using silicone around the exhaust flange on the 250R and it stops the gunk from comin' out around the motor. I have some silicone made for making gaskets with a temperature rating of 329 degrees celsius, should that be good enough to put around my flange?
    85' ATC250R
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  2. 10-17-2008, 05:23 PM #2
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    dcreel
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    Yes, but 400 degrees fahrenheit. Celsius is lower for the same temperature. 400 degrees celsius equals out to 752 degrees fahrenheit.

    I would think that would work.
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  3. 10-18-2008, 04:37 PM #3
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    Fox250R
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    yo man, this is what i got for mine.. http://cgi.ebay.com/ebaymotors/Honda...mZ310090055633

    Now i got no leaks and no oil coming out of my flange. Hope this helps goodluck...
    1986 ATC 250R
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  4. 10-18-2008, 05:18 PM #4
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    Atc GuY
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    What about Red RTV? I've used it on snowmobile exhausts and it holds up...
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  5. 10-18-2008, 08:00 PM #5
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    thanks, ill was looking at my flange today and it has an O-ring, so it must be something bought aftermarket; Anyways i think ill try my silicone, if that dont work, ill buy one of those flanges fox linked to; that looks like a dandy bit of machinery thanks for the reply's!
    85' ATC250R
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  6. 10-18-2008, 08:08 PM #6
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    yo man, this is what i got for mine.. http://cgi.ebay.com/ebaymotors/Honda...310090055 633

    Now i got no leaks and no oil coming out of my flange. Hope this helps goodluck...
    Ditto for me too....

    I have two different ones on my bikes and they both work great. The double O-ring flange will cure your problem.
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  7. 10-19-2008, 12:39 AM #7
    Dammit!'s Avatar
    Dammit!
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    Another vote for the billet double o-ring flange. Every R I ever own from now on will have one.

    Ebay is not always the cheapest option by the way.

    http://www.team-rpm.com/honda_trx_25...htm#eng_access
    Last edited by Dammit!; 10-19-2008 at 12:55 AM.
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