Hey i know this is an old post but I am having the same issue as you...I bought a 96' vulcan 1500 classic. Right now I'm getting no spark from the plugs. What solved your problem? you said the ignition switch...what did you do?
The ignition on my bike was moved on the bike farther back, and it also only has two positions, Off and On, but manual says it should have Off, On, and Park. and the ignition says on, off, P. but doesn't turn that far.
Right now the bike cranks but doesn't even try to start, and tried to look for spark and saw none out of any of the plugs.
Any help would be appreciated.