91 Yamaha 225 Rebuild

Hi all,
I am just in the finishing process of having my 225 yamaha rebuilt. I am wondering if there is a strict set of break-in guidelines to follow. Thanks for your help.

[boats.net]

Follow the same breakin as a new engine and use a 50:1 premix in gas.

Thanks for the response. I have oil injection. I don't know what the procedure is for a new engine. Does anyone have this info? My mechanic is excellent but doesn't know about the Yamaha break-in period. He is more of a merc guy.

[boats.net]

You can view the owners manuals on Yamaha's web site. http://www.yamaha-motor.com/assets/s...-02-91_631.pdf