Hey, 2 days ago I bought a Kawasaki Prairie 250 for $50, body wise it is perfect, except the seat is a little tore up, the thing is its missing its engine, So I want to put the biggest baddest engine possible in this and restore the body and give it a nice paint job. Now I have never worked on or ever owned and bike before but know my way around a car pretty good. So what engine/ drivetrain is best to put in it? The bike will be for fun and but still look good. Thanks and sorry in advance for any stupid question