Need some help here. Bought a 2001 Kawasaki Mojave 250. $600. Ran ok for a while. Drained tank. Cleaned carb. Ran great after that. But then while riding it cut out and would not restart. Compression is good. Very week spark. Replaced spark plug same results. Reading a lot of different stuff. Don’t want to put to much money in to this. Any help would be great. Thank You.