If you need to perform repairs for your Kawasaki Estrella then it is always a great idea to have access to a Workshop Manual for personal reference if you want to know techniques to take out a specific component including Exhaust and fit it again in the right way.
Kawasaki Estrella Workshop Manuals will give specific diagnostic guidelines on your car therefore if something is broken it helps you work out what the situation is and the way to fix it. You can then decide if you can do this by yourself or if the job is simply too big you can actually make a booking for your Estrella in to a suitable car garage.
Kawasaki Estrella manual