My second bike was a 1985 Vulcan 750. Worst bike I've ever owned. Motor has a 2-step camchain system. The factory manual warns that the valvetrain is very complex and only a trained mechanic should work on it. But it does have hydraulic valves so no manual adjustment required. Mine would never start if the motor was hot. I bought it at 4,000 kms on the clock and there were already metal filings in the oil. It's a stubby, unattractive bike with too much plastic but it was very comfortable. Good torque. I was riding on the highway one day and the oil pump failed and the motor seized at 120 km/hr. That was 17 years ago and I haven't owned a Kawi since.