I had a 85hp on my old 16 footer, that was enough to cruise and ski. My 18 footer has a 120hp which is also plenty of motor. You should be OK, depending on how many are in the boat. You'll get around 30mph. Even loaded you should be able to move along OK. You'll find out when you test drive it. You ARE going to test drive it, right?Your kicker should be 5-9.9hp.
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Mike, Editor
www.washingtonlakes.com "Featuring readers lake and saltwater reports."