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  1. Thanks for the info. ? on sparkplugs did not see...

    Thanks for the info. ? on sparkplugs did not see my ngk's on the list. I have a 97 efi 200 serial # OG507892 and been running ngk bu8h plugs . Are these the correct plugs. Thanks Sean
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    97 200 efi tach,and trim ??

    I just got a newer boat Ranger 488VS has a 97 mercury 200 efi with 10 hrs on a factory reman powerhead. here are my? the tach works fine then going down the lake and it goes to zero, then 5 minutes...
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