Mercury 1974 85hp Serial #3868900

by Richard
(Gig Harbor, WA)

I am looking to buy this motor. Does this year have any inherent problems I should be sure to check out before buying. I have seen it running and it pumps water. I have been told the combined shift/throttle control system (both functions controlled by one lever) is problematic (people refer to it as the "dock buster"). The only obvious potential issue I noticed during the run demonstration was a gear like chattering sound when shifting into both forrward and reverse. The chattering stopped once in gear. Is that normal? Thank you.

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