1980 20 sf power?
 

I have a1980 sf i am repowering i have a 225 efi now i am looking to put on a four stroke is a yamaha 200 to heavy? And would a150 be enough motor?

20' or 23'?

it says 20 and yes it is to heavy - a 150 will work great a 225 is way more than needed

Oops, missed that in the title.

Way heavy, a lot of 23 run with 225s. Not necessary on 20 as efficient as a Seacraft.

I had a 135 opti-max on my 20' but there were times I wished it had the 150.

OK Scott, a 23 could barely handled it anyway

I saw an 87 20ft with a four stroke 150 on the transom and it had water coming in the drains with no one in the boat

Hey guys thanks for the info. Like i said i have a 225 2 stroke now. I love the speed but the boat is being restored right now and i am looking for good fuel economy but still speed. Again thanks

I'm at 415, and my scuppers will come in if I walk to the back with nominal fuel, runs back out when at the console no problem, thats why I say about 400 is it. Sitting empty is no issue at all, just add another 200 and maybe the baitwell and its coming, not a big issue in Fla summers.