Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Welcome to JUST ANSWER small engines, let me try to help you !! I don't know it all, but maybe together we can get you a satisfactory answer!
Twin cylinder Kawasaki, can you run a cylinder test? Loosen the two spark plug wires, then with engine idling, remove one wire at a time, engine should continue to run. If engine dies when a wire is removed, the opposite cylinder is not firing. With this engine , check for spark on the dead cylinder, You may have engine only running on one cylinder, and you have no spark, due to a bad coil.
I see question is still open, did you find misfiring cylinder?
Question is still open???