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  1. H

    Mercury 650 cooling problems.

    I have a 1970's 650. I had only a drip from the pee-hole. I replaced the impeller and still the same. the hose to the lower unit is clear and pumps plenty of water if removed on the block end. the pee hole had some trash. It was cleaned out and still the same. Any help on where to go from here...
  2. H

    ?1975? Mercury 650 tilt & trim motor wiring

    I bought a boat with a 650 and the trim motor was unhooked. besides the 3 wire plug there are 2 other wires in the harness 1 has 2 conn. on it. Where do they hook up? Thanks Hal
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