Corect size props

[CW]

I have two 2006 90hp 2 strokes on a 42 foot boat. I currently have 13 pitch props on the engines. Max rpm is 5100 with a light load on a cool morning. What size props do you recommend and who makes them.

[boats.net]

You can drop one prop size(11 pitch) and should be around 5500 rpm's. If you are using Yamaha props try 6E5-45954-00-EL.