My brother had a 73 cb500 thayblooked like a beater but was a great bike. After he had an electronic ignition put on it it was never a problem after that. Even sat outside winters here in MI. I scared my budy on that one day taking him home. I was going to fast at 85. We were 15, no license at the time oops. He picked up a 74 or 75 CB750 that was a creampuff when he purchased it around 1990. Didnt even have 10,000 miles on it. Another great bike. That had way more power than the 500.