Hi Neil,
The Toro has a lot of power hidden in it with a few simple mods, but here is a site that will show you how to hopup you Homelite. The machine work will come in handy. http://testfly.0catch.com/homelite/e...lindermod.html You can also get parts like a water jacket at : http://www.whobbies.com/index1.html Maybe a 25cc isn't enough for that boat. It looks good, but heavy.

Dave