Thread: safe RPM range
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scottht
 
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Default safe RPM range

I have a 1986 SeaRay 21' mid cabin cruiser. This boat has a 4.3
mercruiser V6. I don't have a hour meter on the boat buy I am told it
was low hours driven by a little old man I am wondering what sort of
RPM range that I should be cruising at and what is the highest I should
top out at. I certainly don't want to damage the old girl. I have also
noticed that the RPM's don't seem to be consistant when I have opened it
up in the past. Is that to do with current direction? Any help would be
appreciated. Thanks
Scott


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