Is the rectangular, vertical downtube the only portion that holds oil? The new guy on the YZ forum, "lightestYZF with the 215 lb chromoly frame", (and the stinkin' Iowa DOT), have me thinking seriously about custom frames... Since Iowa, and most states, would license a homebuilt/custom aftermarket FRAMED bike with no hassle (just like "Harleys" from a frame kit) as "Specially Constructed". Iowa Law DEFINES and identifies the origin of a motorcycle strictly and unreasonably by its frame, as opposed to the body on a car or truck, making it very difficult to escape Yamaha's frame number/MSO restrictions. Most states are similar. This is how more and more states are killing our D.S. 'conversions'. Too bad somebody can't crank out aftermarket frames for our bikes like they do for Harleys. A universal '98-'03 frame that would accomodate all the engines/suspension components. My battle hinges on the "Reconstructed" title they issued my bike. I will beat them at their own game. And that's all it is. When you have too many pencil pushers eating at the public trough, and too many tax dollars to waste, this is what you get!