hey just wondering are these hydro s needed ! am running a 2010 90 hp outboard on an old 70s scamp if so why arent these standard when purchased new motor !
rob_man,
Mar 2, 4:52pm
Are you talking about the trim enhancer that bolts to the cavitation plate on the motor! Each boat/motor combination behaves differently so some benefit from it and others don't. My motor has one and it definitely improves the response to the trim angle.
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