Thank you. I don’t intend to work on it myself. I was mostly trying to get advice on if the noise I am hearing is normal with this engine or not. It’s a newer design apparently with a new balance shaft system and so I didn’t know if there is actually a problem or if it’s just a noisy design. Searches online turn up posts that say some Kohlers sound like sewing machines but last forever, etc. I live in a small town and was actually partially trying to support the local hardware store by buying it, etc.