My significant other's father came to visit for the weekend and I got to see his bike in detail but I'm confused. He told me it's a '99 Vulcan 800 which I accepted at face value not knowing much about those bikes. I thought the Vulcan was a simple V-twin of various displacements which I confirmed on the bikez.com website. Well, when I was looking at his bike I asked him what's up with the two air cleaners...one on each side of the bike. He told me that his bike is a V-4. That it has two air cleaners and two carburetors for each side of the V. That's what threw me...I don't see that any Vulcans were ever a V-4. I have a feeling he doesn't know what he has but I'm having trouble figuring out what it is. What Kawasaki (v-twin or v-4) cruiser has intakes on both sides of the bike?