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Old 07-30-2015 | 02:06 AM
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scale only 4 me
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The oem check valve looks very much like a fuel filter,,If your tank is holding pressure then you must have the check valve in place. YS engines use that tank pressure vs. muffler pressure,, that's normal

the third line is likely just for fueling and refueling

It looks like this,,,



120 plumbing


good luck
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Last edited by scale only 4 me; 07-30-2015 at 02:14 AM.
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