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Looking to increase top speeds & drop rpm for interstate travel on my XS400-2. I found a Sprocket on eBay, seller says it will fit 1980, 1981 Yamaha XS400 Would it fit a 1979? Or, how could I get it to fit properly? :umm:

Just found a front fender off a 1982 Yamaha XS400J for sale... Will this bolt right onto my 79 XS400-2 ?? wanting to switch from chrome to painted fenders. If that one won't fit, do any other painted fenders swap over? Thanks

Looking to do a lot of mods to my '79 XS400-2. To go turbo, N2O, cam, etc. I need to know what powerband the bike runs in Stock form, and what powerband I may expect from a modded bike.. Suggestions? :umm:

Been looking @ K&N Air Filters for my XS. What experience does anyone here have with them?... There are many different ones available. My concern is- The open element ones, Are they affected by rain? Don't know much about that situation. I've used them on cars well enough, but being protected...

I recently found it mentioned somewhere, about 16" wheels for a 79 XS400...Didn't realize any were made this size for that bike. Just wondering, are they mag-style (I hope), or spokes? Could see this smaller diameter wheel giving better acceleration and lowering the bike a bit as well. Did they...

Looking for an unmolested, complete stock frame for my '79 XS400-2. thanks

What different years/models/ etc. Frames are interchangeable w/ @ 1979 XS400-2 ?... Mine has been cut in the back to make a bobber with, then previous owner changed their mind... Thanks :)