Hi Sammy. kudos to you for saving those kittys! The Maloney 125 was and is a good engine. When they first came out, I and a couple of friends of mine bought them. Must have been 1980 or so.... I put mine in a Balsa USA Citabria Pro, and flew in the Scale Masters qualifiers for 5 years in a row, here in Calif. My friends flew them in a 1/4 scale Cub and a 80" Robinhood, both flew great. They do require a starter to get going. I think it will work well in your Kadet. Good luck, Duane