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1987 Mercury 80hp

M

Mustang3711

New member
I took my motor to the mechanic and he told me that he has come across an issue that he has never seen before. With the spark plugs removed, there is perfect spark. When you install the plugs, the spark goes away. He even removed the plug (spark returned), stuck his finger in the plug hole and the spark was gone again. Does anyone ever experienced this issue before? Please help....:confused:

Thank you,
Mustang3711
 
Found out what the issue was. It turns out that the stator was too weak. With out any back pressure the stator would work fine, but when you installed the plugs, there was too much back pressure the weak stator to handle. We replaced the stator and now there is a very strong spark with the plugs installed. Thank you again for your replies.

Clayton
 
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