The Vulcan's aluminum-finished mill is an SOHC design with liquid-cooling and a 50-degree V-angle. The four valves in each cylinder head are adjusted automatically. A pair of 36mm Keihin carburetors (one mounted in the engine's V and another behind the rear cylinder head) keep the Vulcan well fed. With combustion chambers the size of the Super Dome, the Vulcan uses dual spark plugs to light the fire. Both cylinders share a common crankpin, so the Vulcan is inherently a shaker, but a gear-driven balancer and rubber mounts take the wallop out of the meaty power pulses. The four-speed gearbox has Kawasaki's convenient neutral-finder feature that makes it impossible to miss getting the green neutral light first time, every time when the bike is at a stop. The aluminum shaft final-drive housing is polished to a high sheen, and typical of the breed, the guts within it are just about maintenance-free. The '96 model we rode had shorter gearing (in second, third, and fourth) than the Vulcan Classic; in '97, all 1500 Vulcans will have the Classic's excellent gearbox ratios.