Ive just purchased a 2006 mercury optimax 90hp on a 2006 nitro 750 and the propeller is very loose. Ive had it at the shop twice.(bass pro)they said it was normal for the optimax, but there is a lot of vibration and i know thats whats doing it.Ive owned a lot of mercury engines before and they dont do this.Is this normal for the optimax?
