My 1986 Sea Nymph SS155, 15.5ft is rated for 80hp. Does the boat have any markings on it at all? I found my model number in sharpie on the original floor when i ripped up the carpet during the restore.
I found the plate and it is rated for a 140hp. The 90 that was on it cratered after a little lake time. Spun a bearing. I put a Johnson 115 with a hydro plate on the lower unit now it porpises like a mad man. Should I take it off?