These engines come in many flavors of 'early' or 'late' models. Previous owners may have added various bells and whistles or not. You can only find out by looking at all the components of your engine or a maintenance log (if you are lucky enough to have one). Of course it helps if you know what you are looking at.
"The cure for anything is salt water~ sweat, tears, or the sea." ~Isak Denesen
Everybody has one:
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