I currently have a Seal 28 , Cornish Chough, with a Bukh Dv 20 engine, which is now beyond economical repair and needs replacing. I am considering replacing with a smaller engine as I will only be using the boat on inland waters (The Broads). What is the smallest engine I can install and any recommendations. I believe Yanmar are a good alternative.

Mark Rowntree
Cornish Chough