Have you tried the online AI conversationalist ChatGPT?
I asked it "Should BMW motorcycle owners have service manuals?" Here is the response (apparently ChatGPT AI is more intelligent that BMW since the latter discontinued the provision of service manuals):
"Yes, it is always a good idea for motorcycle owners to have a service manual for their bike. A service manual provides detailed instructions on how to properly maintain and service your motorcycle, and can be an invaluable resource if you need to perform repairs yourself. It is especially important for BMW motorcycle owners to have a service manual, as BMW motorcycles are known for their complex and high-performance engineering. Having a service manual can help you understand the inner workings of your motorcycle and ensure that it continues to run smoothly and reliably."