How to stop gas line leak in a kawasaki140?

To stop a gas line leak in a Kawasaki 140, first ensure the engine is turned off and cool. Inspect the gas line for any visible cracks or damage, and tighten any loose connections using appropriate tools. If the leak persists, you may need to replace the damaged section of the gas line. Always follow safety precautions and consult the owner's manual for specific guidance related to your model.