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The motor came with the 4-blade (don't know why) I did some reading and came across someone saying that for the 3cyl motor the recommended prop was a 4-blade. There is not too much info on them!
The installed prop is also new.
The motor is mounted slightly above the bottom...

I am going to remove the tail and give it a try. I don't need it to be crazy fast but 26 with the boat empty and flat calm just didn't seem right. It's crazy that the 2cyl motors tend to turn 13p and the 3cyl seems like it could turn 16p and still be in the RPM range...
Thanks..