I believe it is 6 quarts. That is how many quarts come in Vic's 6 quart oil change kit for the older bikes. You should be able to download an owners manual for your bike from Vic's web site. That way you will have all the correct info.
99 Kawasaki Vulcan 800 (sold)
2012 Vegas (traded)
2013 Cross Country Tour
Victory Tri-Ovals, Reverse Kit, Lloydz air filter, Lloydz quarter turn throttle ring, PCV, Lloydz Touring cams, HMD Bars, DGD keyless ignition, Rockford Fosgate Amp, klockworks windshield. 119hp 123lbs torque.