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Old 04-09-2019, 12:45 AM   #2
Comodave
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City: Au Gres, MI
Vessel Name: Black Dog
Vessel Model: Formula 41PC
Join Date: Jul 2015
Posts: 21,187
Could be a lot of different reasons, prop strike, change of pitch or maybe vibration. Need a sea trial and see if the engines will make rated RPMs and if there are any vibrations noted. Good luck, what kind of boat?
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