I picked up my new boat and new motor today saturday, a 25 hp 2 stroke 2005 mercury. Unfortunately, no owners manual. I will call the dealer monday for the manual.<br /><br />Now the dealer gave me a general idea. He said to run 25 to 1 ( twice the oil) for the first tank full and not to stay at any particular speed for a long amount of time. He said the breakin period is ten hours for a 25 hp.<br /><br />Well. I have no way of checking and I hope to go out tomorrow Sunday for a few hours to try the boat out. Any assurance of this would be much appreciated.<br /><br />I have tried to find this info on the web but mercury refers one to the owners manual. <br /><br />Thanks again!