[BigLew]

Nos,

Let me be the first of many to welcome you aboard.

In your posting, you didn't mention what length Seacraft your project is. I assume it is either an 18 or 20 foot boat. Both will likely adequately perform with your 90 hp Yamaha. Obviously, the 18 foot will do better. While neither will be a speed demon, both should perform respectably. The bigger question is how hard that motor is going to have to work on a regular basis. A more powerful motor would not work nearly as hard as the one you have will.

If you current budget will not comfortably allow you to purchase a more powerful motor, you might want to think about using your 90 horsepower this season and sell it in the fall and repower with a larger one in the spring. At least that will spread out the pain!

Generally, most members would recommend 135 to 175 horsepower for 20 foot Seacraft. If the boat is 18 feet, the range would probably fall in 110 to 140 horsepower.

I'm sure many others will chime in. Again, welcome aboard. Be well and good luck.