Re: 225 merc question
That wire is more of a bonding wire than a ground for the trim motor, if it is smoking you have a poor ground at the trim harness. If it's a 2 wire trim motor the trim relays reverse the polarity between the 2 wires for up and down the ground wire for the relays is not conducting well it probably needs to be cleaned and or tightened.
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1979 23 SCEPTRE TWIN 150 Opti's/GAUSE BUILT BRACKET
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