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Old 07-30-2020, 01:33 PM   #1
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Join Date: Jul 2019
Location: Oklahoma City, OK
Posts: 181
Default Brass fuel shut-off valve binding.

Any thoughts why it has become very hard to turn on and off? This is a new brass valve (original style), installed in the spring. I've been using Marvel Mystery Oil in the gas for a while now. Thanks in advance.
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