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Spark Plug on Mercury question
I opened up the cover of my Mercury 9.9 today and saw that there were 2 spark plugs connected to the engine. On the sticker it said: Standard spark plug: NGK BP8HS-15 Suppressor Spark plug: NGK BPZ8HS-15 I read the manual, it doesn't mention anything about the suppressor spark plug. What is a suppressor spark plug, anyway? To winterize my motor, do I have to fog oil into both plugs? Thanks.. |
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