Boosted97gt
Member
- Joined
- Feb 16, 2015
- Messages
- 6
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I have a 1975 evinrude 15hp on a 14ft semi v. Very lite boat. I had myself and 2 other people in it and it would only go 7.5mph. With just myself in it it would go 15mph. The prop is a 9 1/2 x 10. Is that all it has?