My fan cooled Kawasaki 440 with exhaust, electric start, and what J-bird calls the "up-up" version of the Micro V redrive weighs 83 pounds. That's without the pull start and carburetor mounted. The exhaust is the style that turns upward and mounts on brackets attached to the cylinder head of the engine, similar to the common Rotax exhaust setup. It makes a nice compact package. Compared to the old 277, this thing felt smooth as a turbine engine. I'm very happy with this Kawasaki power package.