Clarke gas cap leak?
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Thread: Clarke gas cap leak?

  1. #1
    Member Waymore's Avatar
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    Clarke gas cap leak?

    My Clarke tank gas cap broke the other day so I bought the tusk aluminum replacement. The old cap would let a little fuel flow out through the threads and run down the tank when it was pretty full, but I just figured it was the old crappy cap. Well the new tusk one does it worse. Is there any type of material I can use as a home made gasket to stop the flow that the gas won't eat through?
    1992 TW200 6300 miles. Supposed engine rebuilt by previous owner

  2. #2
    Senior Member Donzo's Avatar
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    I have the Tusk cap also and thought it was a leaker - you just gotta really tighten it down - last 1/4 turn with both hands. over time it is not so difficult to get this tight and it does not leak. The gasket must get softer with use.
    BE CAREFUL when putting the Tusk cap on. It is easy to start "mis threading" the cap and the aluminum will shred the plastic tank. I started to do this but caught it before I ruined the tank threads. Now I am super careful that the cap is in proper alignment before starting to torque it down.
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  3. #3
    Member Waymore's Avatar
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    My tusk cap doesn't have a gasket?
    1992 TW200 6300 miles. Supposed engine rebuilt by previous owner

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  5. #4
    Senior Member TW-Brian's Avatar
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    Quote Originally Posted by Waymore View Post
    My tusk cap doesn't have a gasket?
    It probably should. Here's what mine looks like.

    Tusk Gas Cap 1.jpg

    Tusk Gas Cap 2.jpg
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  6. #5
    Member Waymore's Avatar
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    It does I went and looked. Guess I just didn't notice it! I cranked it down all the way and it hasn't leaked yet.... though I didn't fill the tank back up all the way
    1992 TW200 6300 miles. Supposed engine rebuilt by previous owner

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