You are going to have a good laugh......I bought it a few years ago and only logged 200 miles on it. (LoL) The odometer reads 23,000 miles but not sure if it has the original motor. Supposedly a guy named "Wild Bill" out in California re-built the bike but has since long passed away, so I could not research any further.
Just acquired a 1977 KZ 1000 LTD after riding Harleys for 30 years. I remembered these bikes back in high school with the Kerker pipe and figured what the heck? A very fun bike!