what do you recommend to clean it with?

[GetANet]

I have a small outboard that the inside of the engine compartment is pretty dirty and wanted to clean it before I start replacing parts. The foam from the cover has dried up and is really making a mess and don't want it getting sucked into the carb. I already removed what was left and sealed the cover but what or how should I clean off the rest of the motor? Can I use some kind of spray simple green ? Degreaser? etc. and rinse it off with water ? Any advice would be greatly appreciated!!!