Thread: 2003 mercury 150
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Old 03-12-2007, 07:34 PM
Bigshrimpin Bigshrimpin is offline
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Join Date: Dec 2002
Location: Onset, MA
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Default Re: 2003 mercury 150
That's normal for 2 stroke motors with the poppet valve. The motor builds up h20 pressure and then the poppet will open.



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