by Paul
(Waleska, GA,USA)
I have a 2006 Boston Whaler w/60hp Mercury Bigfoot 4 stroke. The motor has approximately 100 hours and has been a great engine. I changed the Impeller and lower lube during the off season and now the engine seems to be loud when I increase the rpms beyond 1000. It seems to have plenty of power, just runs much louder than normal.