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Thread: Is Gasket sealant necessary?

  1. #1
    Join Date
    Mar 2006
    Location
    Michigan
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    1,144

    Is Gasket sealant necessary?

    I am putting my 125m motor back together after having to split the case to fix a transmission problem. I have a new gasket set and am wondering if a gasket sealant is necessary? If so what is best to use?
    85 Big Red
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  2. #2
    Gripit'n'ripit's Avatar
    Gripit'n'ripit is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Nov 2007
    Location
    Rochester NY
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    251
    I do not believe it is necessary. Most of my manuals don't even mention or suggest it.
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  3. #3
    Join Date
    Feb 2011
    Location
    Sarnia, Ontario, Canada
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    3,415
    Not if you use good gaskets, unless it's a cover you might want to remove again like the clutch or CDI
    cover. For this application I like a thin layer of grease to keep the gasket from sticking.

    There are occasions I like to get gasket adhesive..spray it on the gasket and cover to stick the gasket so it doesn't slip out of position during assembly.
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  4. #4
    Join Date
    Mar 2010
    Location
    Slidell, LA
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    4,738
    Gasket sealant is necessary where your manual tells you to use it. I recommend Hondabond HT.
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  5. #5
    Join Date
    Feb 2011
    Location
    southern maine
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    67
    or in areas where any pitting or galling it present ( somone prying cases apart with flat heads etc.)

    Give it a little flat file and maybe a dab of sealant if you still feel a nic.

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