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Thread: GS 1000 gaskets

  1. #21
    Nessism's Avatar
    Nessism is offline Forum LongTimer GSResource Superstar
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    Stay clear of the Athena base gasket, it's made from a material that can't take the compressive forces demanded of the application. The head gasket seems better though.

  2. #22
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    So we should just buy NOS or new Cometic base gaskets from now on?
    Cometic said they can whip out any custom configuration (big bore, different thickness vs stock, etc) paper gaskets or composite head gasket in a week.
    MLS head gaskets require a minimum quantity bulk purchase however.

    '77 GS750
    920cc, 4-1, 1100E swingarm, 18"rims, Fox Shox, twinpot dual disc, VM29, Yosh cams
    '97&'99 Kawasaki KDX220R's rugged terrain rippers
    '74 Rickman VR250MX
    PROJECTS:
    '77 Suzuki PE250 trail beast, ported cyl, RM250C head, Lectron carb?, Fox/RaceTech suspension
    '76 Rickman CR GS1000-1100cc roadracer, Yoshi cams&4-1, RF900R fork, Works Shox
    '77 GS400 489cc, GR650 cams, GS500 fork/brake, DID rims, 1100E swingarm, Fox Shox
    '77 GS550 650-740cc
    '78 GS1000C 1100cc, mods
    '79 GS425 bigbore?

  3. #23
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    I got a few of the GS1100G (& GS1000/GS850/GS750-big-bore) MLS Athena head gaskets and they meet my satisfaction plenty vs any composite gaskets.

    '77 GS750
    920cc, 4-1, 1100E swingarm, 18"rims, Fox Shox, twinpot dual disc, VM29, Yosh cams
    '97&'99 Kawasaki KDX220R's rugged terrain rippers
    '74 Rickman VR250MX
    PROJECTS:
    '77 Suzuki PE250 trail beast, ported cyl, RM250C head, Lectron carb?, Fox/RaceTech suspension
    '76 Rickman CR GS1000-1100cc roadracer, Yoshi cams&4-1, RF900R fork, Works Shox
    '77 GS400 489cc, GR650 cams, GS500 fork/brake, DID rims, 1100E swingarm, Fox Shox
    '77 GS550 650-740cc
    '78 GS1000C 1100cc, mods
    '79 GS425 bigbore?

  4. #24
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    I looked up a few other modrls, 750 & 850 8v bikes, & Partzilla shows those OEM head & base gaskets as unavailable as well... They do still list the egg shaped o-rings used on the oil feed passages on the base gaskets, however. Except for one of the 2 different thickness/years of GS1100G oil feed base gasket o-rings...

    Also, i noted that a $25 cylinder head cover gasket is now $45, & a starter relay is now $64...
    Welcome to the new ways of the world thanks to Covid...

    '77 GS750
    920cc, 4-1, 1100E swingarm, 18"rims, Fox Shox, twinpot dual disc, VM29, Yosh cams
    '97&'99 Kawasaki KDX220R's rugged terrain rippers
    '74 Rickman VR250MX
    PROJECTS:
    '77 Suzuki PE250 trail beast, ported cyl, RM250C head, Lectron carb?, Fox/RaceTech suspension
    '76 Rickman CR GS1000-1100cc roadracer, Yoshi cams&4-1, RF900R fork, Works Shox
    '77 GS400 489cc, GR650 cams, GS500 fork/brake, DID rims, 1100E swingarm, Fox Shox
    '77 GS550 650-740cc
    '78 GS1000C 1100cc, mods
    '79 GS425 bigbore?

  5. #25
    salty_monk's Avatar
    salty_monk is offline Forum LongTimer GSResource Superstar
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    You and Larry should get together on this.... you're both looking for gaskets.

    1980 GS1000G - Sold
    1978 GS1000E - Finished!
    1980 GS550E - Fixed & given to a friend
    1983 GS750ES Special - Sold
    2009 KLR 650 - Sold - gone to TX!
    1982 GS1100G - Rebuilt and finished. - Sold

    www.agadisplay.com
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    TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/

  6. #26
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    Quote Originally Posted by Chuck78 View Post
    So we should just buy NOS or new Cometic base gaskets from now on?
    Cometic said they can whip out any custom configuration (big bore, different thickness vs stock, etc) paper gaskets or composite head gasket in a week.
    MLS head gaskets require a minimum quantity bulk purchase however.
    Where did you get that time frame?
    Cometic website says 5-6 weeks
    1978 GS 1000 (since new)
    1979 GS 1000 (The Fridge, superbike replica project)
    1978 GS 1000 (parts)
    1981 GS 850 (anyone want a project?)
    1981 GPZ 550 (backroad screamer)
    1970 450 Mk IIID (THUMP!)
    2007 DRz 400S
    1999 ATK 490ES
    1994 DR 350SES

  7. #27
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    From a phone call, but that was a year or two ago.
    Paper gaskets they told me are no problem, they can cut them immediately or on short order if any alterations need made to the standard shape/size
    The cfm composite head gaskets take a bit longer.

    '77 GS750
    920cc, 4-1, 1100E swingarm, 18"rims, Fox Shox, twinpot dual disc, VM29, Yosh cams
    '97&'99 Kawasaki KDX220R's rugged terrain rippers
    '74 Rickman VR250MX
    PROJECTS:
    '77 Suzuki PE250 trail beast, ported cyl, RM250C head, Lectron carb?, Fox/RaceTech suspension
    '76 Rickman CR GS1000-1100cc roadracer, Yoshi cams&4-1, RF900R fork, Works Shox
    '77 GS400 489cc, GR650 cams, GS500 fork/brake, DID rims, 1100E swingarm, Fox Shox
    '77 GS550 650-740cc
    '78 GS1000C 1100cc, mods
    '79 GS425 bigbore?

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